Cannot Upgrade from Free to Pro - Internal Server Error

What is the name of the domain?

.

What is the error number?

Internal Server Error

What is the error message?

Internal Server Error

What is the issue you’re encountering

We have a problem with switching the plan from free to pro. Support was contacted 3 days ago, but there has been no response or solution to the issue. Case Number: 01201374

Billing issues requre a Billing ticket with Support

01201374

In what area can we help you?

Upgrades

Our billing team has replied to you on ticket 01201374. Thank you!