Hello, with whom to contact me or tell me how to fix the error when synchronizing wallet
https://prnt.sc/k6nyovIn general, you check for the presence of Qt DLLs (Qt5Core.dll, qwindows.dll) in the program's folders. Or just try reinstall wallet.
It is nice to see that the project has not lost its relevance and is still developing, few projects have survived the market depression of the end of 2018.