You say "My company sent me a 592-B". Is "my company" is your employer that you are a regular W-2 employee of? Or are you self employed and "my company" is the CA client?
If the latter, you are subject to CA tax simply by having a CA based client. You need to file a CA non resident return. On your OH return, you claim a credit for the net tax you end up paying to CA.
If the former, that's weird. You may need to ask your employer "what's going on?"
