Emails disappeared from all folders except Inbox

Emails disappeared from all folders except Inbox

Hi,
All emails that are moved from Inbox into folders that I created have disappeared. Emails that remained in the Inbox are still accessible. This is the case when Zoho Mail is accessed from the desktop. In the mobile app emails in folders are shown in the list without subject or address and cannot be opened.
I hope it is possible to fix. I try to keep Inbox tidy so that means most of my emails end up in the folders.

Best regards,
Szczepan