Moved installation: SSL operation failed

Goof afternoon,

I managed to really mess things op this time. We change our domain name. Moving should have been easy. Found the instructions that I should only have to delete the .dat file and then re-register.

Now unfortunately I get the php error below.

Connection error: Error: Error creating resource: [message] fopen(): SSL operation failed with code 1. OpenSSL Error messages:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
[file] /srv/home/maastrichtseverkennersbandnl/domains/mvbmaastricht.nl/htdocs/victor/system/classes/vendor/GuzzleHttp/Handler/StreamHandler.php
[line] 311
[message] fopen(): Failed to enable crypto
[file] /srv/home/maastrichtseverkennersbandnl/domains/mvbmaastricht.nl/htdocs/victor/system/classes/vendor/GuzzleHttp/Handler/StreamHandler.php
[line] 311
[message] fopen(https://www.filerun.com/licensing): failed to open stream: operation failed
[file] /srv/home/maastrichtseverkennersbandnl/domains/mvbmaastricht.nl/htdocs/victor/system/classes/vendor/GuzzleHttp/Handler/StreamHandler.php
[line] 311

I have already tried to set the curl.cainfo(user.ini) to the one in the installation, but I am not able to restart the server as I am on a shared hosting platform.

I also changed all database entries with a replacement query into the new path, same goes for any path present in files.

However I still get this message. This software application is registered to a different server hostname.

Anyone who can help me? Tell me what to do? The installation contains most of our music scores. We are a civilian marchingband non-profit so no budget whatsoever to get any paid support.

Thanks for anyone who is willing to help me.