No access to my zcash4win wallet?

Have had this issue for a couple of weeks now. I can open a new wallet, but when I restore my backup wallet dat file, the error comes up. I have already tried the config changes (deprecation) from the forums with the same results. Also have tried deleting chain/.lock/blocks. Whats the issue?
Do not believe that I backed up any other folder/file other than my original wallet. Have I lost my funds??

End of Debug log:

2018-02-17 05:57:21 No coin database inconsistencies in last 289 blocks (3386 transactions) 2018-02-17 05:57:21 block index 2279ms 2018-02-17 05:57:21 init message: Loading wallet… 2018-02-17 05:57:21

EXCEPTION: St13runtime_error
CDB: Error 1, can’t open database
C:\Program Files\zcash4win\app\zcashd.exe in AppInit()