I am guessing the address with which you try to vote, isnt your validator address?
If it is then try these:
- check you have latest version of onewallet from chrome store
- go to extensions in your browser settings and simply turn off/turn back on the onewallet extension
Also note that these spaces are reserved for proposals only, the support should be asked for on discord or telegram
the wallet is the staking wallet, but probably the extension should be updated to the latest version
also, thanks for pointing to the support sources and feel free to send this topic to archive as I don’t have permission to delete it