database crash

I've overwritten my database and quite naturally, xenforo is not working. Is it possible the generate a new database only without doing a complete new install?

Several days ago my Xenforo database crashed, users got a "cannot connect to database" error, some with mobile variants of the same error but still showing the forum theme. My web host restarted the MySQL server, which fixed the issue for 6-9 hours, saying "MySQL was hanging and refusing to...