Thanks for your reply. I have the latest version of the wallet and OS Windows7. I deleted all the files except what you said. The wallet is loaded. But my balance and transaction is not ((All blocks are synchronized to the last.
What do you mean by that exactly - is your $PAC balance is zero or wrong? Are any of transactions shown or all of them are missing?
If the $PAC balance is zero and all transactions are missing, this might indicate that the wallet.dat file was newly generated (since the previous one got damaged or was missing or is in wrong folder / place / computer). In this case, I would not try to open close your wallet again until this is dealt with. Instead, I suggest you to join the $PAC discord server (
https://discord.gg/Bx2HKfy) and describe your problem in the #paccore-wallet-support channel the best you can. My idea would be to recover the wallet.dat file from the backup you created before, or from backup copies created by the wallet itself (present in the "backups" folder inside the "PaccoinCore" folder). In any case, $PAC discord server is the place one has the best chance at solving the issue you have.