Huge error log and obscure database problems

So I’ve never worked with wp before but I’ve worked with other CMS before, but I’ve just undertaken the worst nightmare of a problem for free…

anyways the site voxtropolis.com is extremely slow / non-functional and I’m pretty sure its from database queries.

I have an error log file that is over 25mb, starting with errors from March 11 to today.

On reading the documentation I’ve found that the tables for wp seem to have been obscured with unique identifiers, and the tables seem to be multiplying

for example, this is one of the tables that it was trying to parse but to no avail:

Table 'db26633_voxdb01.wp_277_terms' doesn't exist

most likely it exists but can’t be accessed because even I can’t access the database “voxdb01” in myphpadmin because it crashes and the server says see the server admin (I’ve looked into server problems and they are fine). But I noted that there is over 14,000 tables in this database and I dearly hope that that is completely wrong.
There is two other databases in the server. One, “voxdb,” is an older duplicate or something which also has over 2,000 tables and saw that the wp table names have unique identifiers like 277 in “wp_277_terms” and that all the tables were just being repeated over and over with new numeral identifiers.

Okay, now I’ve searched the web looking for anyone that has had a similar problem, but to no avail, and I’m looking to see if anyone has the slightest clue of what went wrong here.