my site. http://www.erstexas.net

i have had zen-cart up and running for like a year with zero issues. i have not installed any add-ons or moved servers.

overnight i get this error

1146 Table 'erstexas_zc1.zen_configuration' doesn't exist
in:
[db_cache table]

the config to connect to the database is correct.. but as it looks that zen_configuration table is gone.

How do i get it back?