Are you sure your 4.5.1 install is functioning correctly? That error indicates the zimbra db config table is missing or corrupt. Either way your install wouldn't really function without it.
Make surethe config table is there.
mysql -u zimbra -Dzimbra -e "show tables;"
mysql HY000 1017 is file not found so make sure /opt/zimbra/db/data/zimbra/config.{frm,ibd} exists |