Hi @Romulus

The PHP version was 8.2. For some reason, I assume due to changes in the hosting provider's policies, I found it had been reverted to 8.1 with the changes that this entails.

Finally, last night, I reverted the version to 8.2 with the required extensions and options, according to the UNA documentation (https://unacms.com/wiki/Requirements).

Once the changes were made, I cleared the data stored in the browsers, and the issues seem to have been resolved for a few hours now.

I think we can close this thread.

Thank you @Romulus, to you and the community.