Thank you Sanecty for your answer, but I think that I don't explained properly.
When I create an invoice manually, then I can "see" "edit" "pay" options, but the Status is "Unsent". When I click the "send" button the system tells me: Oh noes!Unclose tag, expecting endfor on line 98 in /home/facilpla/public_html/admin/vendors/h2o/h2o/parser.php
Printing Stack Trace:
#0 /home/facilpla/public_html/admin/vendors/h2o/h2o/tags.php(112): H2o_Parser->parse('endfor', 'else')
#1 /home/facilpla/public_html/admin/vendors/h2o/h2o.php(151): For_Tag->__construct('invoice in invo...', Object(H2o_Parser), 111)
#2 /home/facilpla/public_html/admin/vendors/h2o/h2o/parser.php(89): H2o::createTag('for', 'invoice in invo...', Object(H2o_Parser), 111)
#3 /home/facilpla/public_html/admin/vendors/h2o/h2o.php(106): H2o_Parser->parse()
#4 /home/facilpla/public_html/admin/vendors/h2o/h2o.php(142): H2o->parse('Hola {contact.f...')
#5 /home/facilpla/public_html/admin/app/models/emails.php(753): H2o::parseString('Hola {contact.f...', Array)
#6 /home/facilpla/public_html/admin/app/models/emails.php(479): Emails->buildEmail('invoice_deliver...', '1', 'es_es', Array)
#7 /home/facilpla/public_html/admin/components/invoice_delivery/invoice_delivery.php(122): Emails->send('invoice_deliver...', '1', 'es_es', 'contacto@mundod...', Array, NULL, NULL, Array, Array)
#8 /home/facilpla/public_html/admin/app/controllers/admin_clients.php(294): InvoiceDelivery->deliverInvoices(Array, 'email', 'contacto@mundod...', '1', Array)
#9 /home/facilpla/public_html/admin/lib/dispatcher.php(111): AdminClients->invoices()
#10 /home/facilpla/public_html/admin/index.php(21): Dispatcher::dispatch('/admin/clients/...')
#11 {main}
This problem only happens in "send invoice" because the welcome message arrives correctly.