I've already tried, I've seen the processes and completed them, but even that hasn't solved the problem.
that's how it happened to me-working db suddenly crashing on startup, killed all the processes mysql,mysqld,mysqld_z and got it to work
upon a clearer inspection it tells you missing redo log file
could be caused by database corruption, antivirus interference, read/write permissions, wrong paths set up-but the repack is premade and works with relative paths, but you said it suddenly stoped working-this points to db corruption
Maybe try reextracting the database folder or the whole repack again, but simply overwriting it may not sufface so it's advisable you delete the old parent database folder and then put the new one in it's place as some generated logs files etc may remain and be opened by the fresh db.
if you need to port the accounts and characters-dumb the data of these two databases and import them in the newly extracted,
it's a log file that it can't find/open. meaning the db structure and it's data should be preserved
hope it works after reextracting the db, if it doesn't then it's something external interfering
