failed to join with any char, my sorceress called chain is stucked as invisible somwhere. i cant play
The most likely scenario here is that your shared stash file got corrupted (most likely due to power outage or a hard computer crash) which is why you can’t join with any characters.
This is unfortunately a big flaw with D2R and unless if you have backups then you’ll need to just deleted the corrupted shared stash file.
You’ll find it under C:\Users\%USERNAME%\Saved Games\Diablo II Resurrected, it’s called "SharedStashSoftCoreV2.d2i" or "SharedStashHardCoreV2.d2i" for softcore and hardcore respectively.
If you do have backups then you can simply replace that file with your backup, if not then I’d suggest saving backups in the future. Personally I have backups located in a separate drive and I occasionally back them up on Google Drive as well.
Really hope they fix this corruption issue though, original D2 was nearly foolproof in regards to corruption (i.e. basically never happened outside of old game versions).