Server error 503 Service Temporarily Unavailable

Whenever you are trying to reach the WP dashboard (/wp-admin) and you get Server error 503 Service Temporarily Unavailable or something like "Fatal error: Allowed memory size of ..." the most likely cause is that wordpress has been updated to 6.1 before the Betheme update to 26.5.1.4.

In such case, you have to download the most recent version of Betheme from Themeforest (Downloads section), log-in onto FTP and in /wp-content/themes/ folder, you have to replace existing folder of /betheme/ with the one downloaded from Themeforest. After this, the wp dashboard will get back to normal.

NOTICE! No need to worry about the data because all settings/options/data are stored in database and not files.