Not a regular file…
Thank you very much for your report @matteo_baschera.
I'm not the entirely sure what causes this error. I will investigate.
[16-Dec-2022 10:48:32 UTC] PHP Warning: ftp_get(): XMLExport: Not a regular file in /.../wp-content/plugins/escep-cms-wp/core/src/Service/NetFTP.php on line 79
[16-Dec-2022 10:48:40 UTC] PHP Warning: ftp_get(): XMLExport: Not a regular file in /.../wp-content/plugins/escep-cms-wp/core/src/Service/NetFTP.php on line 79