Michael

What order template are you using? Your site looks like it has custom changes to the order plugin. That could be responsible for the problem.
I wasn't able to duplicate this behavior on an AJAX or Wizard order template. The Order plugin shouldn't redirect to another page when you redeem a coupon, it should just refresh the Order Summary section via AJAX.

Are the URLs to the sandbox, live, and refund end-points identical to what they were before, but just at the EU TLD?
It looks like the US DOJ charged the company with a felony and took down their website for processing transactions without a license, so that's probably why they moved operations to their EU domain.

Oopsies

We've created CORE-3206 to do just that

It's solved in 4.6 I confirm ?

I don't see any licenses issued to that domain. Did you enter the entire key they provided you? Please PM me the key and I'll take a look.
We now allow 1 IPv4 and 1 IPv6 IP by default, should no longer be an issue.

You haven't got the correct order form you need to set it as Domain.

 
Looking more closely it might be you have another group.

 
Blue: Domain package group
Purple: Hosting packages.

You haven't got the correct order form you need to set it as Domain.

 
Looking more closely it might be you have another group.

 
Blue: Domain package group
Purple: Hosting packages.

It appears it is related to OPcache .  Turning this off the 503 error no longer appears..

lol
when you wrote Paul, initially i thought @Paul, and i was like, "what???"
but then i realized its @Paul74
i feel i will have to look at you twitter account, but i agree, your love for blesta makes you rip apart those liking the W-shit-cs pick
hahaha
what say?

If you have a valid license all you need to do is enter the license key on installation / if not installing try and log into your admin area you should get a license key pop up. Enter your key into the box and click update. If that doesn't work contact your host and explain they need to give you a proper key.
Not sure what you mean by the last bit. 

1. do what to get authenticated
2. in case you have the license number, its better to open a support ticket at https://account.blesta.com/client/login/
3. in case the license is really valid, @Paul or some one from blesta will help you
4. in case the license is not valid, again, they will help you how to proceed, also, in case the host is cheating on you, blesta will take proper action
5. if you feel this is helpful, like by pressing the react button 
wish you happy blesta-ing
in case you still require more help, let the forum know

Was it you that I chat with earlier? If yes, then it was the cron job - it wasn't set up on the server. In case any others have this issue, make sure you set up the 5 minute cron job. Settings > System > Automation shows what the command should be, but the cron must be created on your server.

You have the system_hash key in config/blesta.php
but break that and your encryptions are all gone.

Edit:
HAHAHAHAHAH the password from a hash? Erm it's done with Bcrypt which is irreversible like Beav said. There's NO way you can reverse that unless you use a competitor who doesn't use it correctly.

What do you mean? We create new payment gateways all the time. If @cntshepo needs a particular SA payment gateway, we'll take a look and consider integrating.

Nice work @Blesta.Store and @timnboys. Front end is looking good. I hope testing goes smoothly.

I started BlestaForums to get a community forum part of Blesta and make it more integrated and amazing. I've been very busy lately working in my new job as-well and I've been doing other things. Timothy (@timnboys) has been helping complete the forums as he wanted to get it to work on his site instead of the paid and free ones.

So together we've been doing the Blesta Forums and we're proud to announce that it's now in Pre-beta! This means we're testing it with our own customers so we can ensure it's as bug free as we can before the private beta emerges.
Both of us will be selling the product with our own licensing servers and we'll both support it's growth together. it will be open code minus the encoding for licensing purposes and we have so much planned.

I've got a to-do list here: https://atlantis.plutio.com/p/blestaforums
 
He's a small preview for our non customers:



 





 
Our site: https://blesta.store/client/plugin/blesta_forums/
Timothy's site: https://cubedata.net/client/plugin/blesta_forums/

i agree
and may be you would also agree, that you along with @GosuHost, had to be with me, online, many times to fix up a few bugs which got pointed out, after i started using the cms...
but any which ways, when you develop the product, you get along with the journey, discovering new bugs then fixing it
i shall be awaiting the release for general public

I started BlestaForums to get a community forum part of Blesta and make it more integrated and amazing. I've been very busy lately working in my new job as-well and I've been doing other things. Timothy (@timnboys) has been helping complete the forums as he wanted to get it to work on his site instead of the paid and free ones.

So together we've been doing the Blesta Forums and we're proud to announce that it's now in Pre-beta! This means we're testing it with our own customers so we can ensure it's as bug free as we can before the private beta emerges.
Both of us will be selling the product with our own licensing servers and we'll both support it's growth together. it will be open code minus the encoding for licensing purposes and we have so much planned.

I've got a to-do list here: https://atlantis.plutio.com/p/blestaforums
 
He's a small preview for our non customers:



 





 
Our site: https://blesta.store/client/plugin/blesta_forums/
Timothy's site: https://cubedata.net/client/plugin/blesta_forums/

technically the trial download isn't working because it hasn't been released to the public yet(aka reached RC(Release Candidate) status yet)

I started BlestaForums to get a community forum part of Blesta and make it more integrated and amazing. I've been very busy lately working in my new job as-well and I've been doing other things. Timothy (@timnboys) has been helping complete the forums as he wanted to get it to work on his site instead of the paid and free ones.

So together we've been doing the Blesta Forums and we're proud to announce that it's now in Pre-beta! This means we're testing it with our own customers so we can ensure it's as bug free as we can before the private beta emerges.
Both of us will be selling the product with our own licensing servers and we'll both support it's growth together. it will be open code minus the encoding for licensing purposes and we have so much planned.

I've got a to-do list here: https://atlantis.plutio.com/p/blestaforums
 
He's a small preview for our non customers:



 





 
Our site: https://blesta.store/client/plugin/blesta_forums/
Timothy's site: https://cubedata.net/client/plugin/blesta_forums/

The goal is to remain backwards compatible, so far it's looking like that will be possible. Meaning that existing registrar modules should continue to work, and it shouldn't break when installing the domain manager. However, the domain manager may not be able to recognize pre-existing domain packages and take control over them. A way of conversion may be required to take full advantage of the domain manager with existing domains unless starting fresh for domains going forward.

CORE-3181

Thanks,  I managed to login to blesta.store.   I was trying to log into the licencecart site,  and didn't have access to my domains email server. 
 
But now managed to get a password reset email from blesta.store and my licence is there.
 
Many thanks for your help! 

you can open a ticket with blesta, give him more info about your reseller and license key, i'm sure they can move the license to your account or give you another license key with the matched expiration date .