Tell me what could be the problem, and how can i fix it: The wallet is not synchronized, stopped at 20787 block. There is no synchronization error, wallet reports that it is synchronized.
In the block explorer, all operations are visible and present, only my personal wallet does not display them.
Wallet version v0.12.1.7-74d90e2
Your wallet is synced to the wrong chain.
Check here:
http://vivo.explorerz.top:3003/in the bottom corner for current block.
Suggestion:
Add the nodes found on the thread to the vivo.conf file. Delete/rename peers and banlist files.