I'm afraid that in this situation you’ll likely end up with three main options, namely, applying  rescan/reindex to copy of blockchain you have  or starting IBD  from scratch. My recommendation would be to start with rescan first. If that doesn’t solve the issue, then move on to reindexing.In terms of speeding up these processes, unfortunately, there isn't much that can be done beyond optimizing your hardware, as these operations are highly dependent on system resources. However, if none of these options work and you decide to proceed with IBD, the you might speed up the synchronization process by increasing the dbcache size and limiting the node to only download blocks.

I'm afraid that in this situation you’ll likely end up with three main options, namely, applying  rescan/reindex to copy of blockchain you have  or starting IBD  from scratch. My recommendation would be to start with rescan first. If that doesn’t solve the issue, then move on to reindexing.In terms of speeding up these processes, unfortunately, there isn't much that can be done beyond optimizing your hardware, as these operations are highly dependent on system resources. However, if none of these options work and you decide to proceed with IBD, the you might speed up the synchronization process by increasing the dbcache size and limiting the node to only download blocks.