Navigate to the directory containing bitcoind.exe or bitcoin-qt.exe . Run: bitcoin-qt -salvagewallet or bitcoind -salvagewallet . 2. Move to an Older Version First
in Bitcoin Core) to convert data to descriptors and allow a background rescan of the blockchain Bitcoin Forum 3. Database Indexing Logic Secondary Indexes indexofwalletdat is a database field, implement it as a Secondary Index indexofwalletdat upd