Samsung Calendar in My S20FE Exynos Not Syncing

[FaisolBD]

I have been using the Samsung calendar app since I bought the phone in November 2020. It used to work well.

But for the last week, I have been experiencing that any new calendar entry that I put into the calendar, is not found after I close the calendar. The entries seemed like to be evaporated. 

Calendar is a very useful tool for me. 

Why is this happening? 

[Samsung_Support1]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support