Nextcloud client error There is an error in the modified date/time informed by the server. Not save.

📱 Desktop & mobile clients 💻 Desktop
1

we are facing the following error:
There is an error in the modified date/time informed by the server. Not save.
We noticed that the files that are giving error have a modification date on the server of 12-31-1969 21:00.
We would like some help to resolve this issue.
Grateful.

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2

Unfortunatelly there is missing the version of the installed Nextcloud desktop client.
If 3.4.x, downgrade to 2.6.5 or 3.3.x and try again.