IPAD onedrive sync issues to computer

Dear all, have a great night.

I started to have an issue with my one drive, after few days from my Ipad to the computer I'm not able to synchronize any file anymore.

I got some excel files and got them in offline mode also.

When I'm working on them and for any reason the Ipad goes into sleep, then I cannot open the file anymore, this is in the one drive folder where should be synchronized already.

I have checked already in the computer and in the one drive area but everything seems to be okay.

I have reinstalled one drive already, but this didn't solved the issue.

Seems to be that was an update not so long ago, but everything else is working fine.

Can you help me to get a solution over this? Will be very appreciated.