You will want to review your database backups because it would not be possible to run areas of the software with these tables missing on 4.7.0.
Just to comment on this segment here, in case you didn't know, IPB_Firewall means that your hosting has been compromised as this is not an Invision product but rather virus/backdoor of sorts. You will want to remove it ASAP and change all credentials to your hosting (hosting panel, FTP/SFTP, SSH, etc...)