A table is missing from the database.
WHAT IT MEANS
The database exists and connects, but a table the application needs is absent.
THE COMMON CAUSES
An incomplete import, frequently from a timed-out export A table prefix mismatch between the configuration and the actual tables An incomplete installation A table dropped in error
CHECKING THE PREFIX
In phpMyAdmin, look at the actual table names. In WordPress they typically begin wp_ but the prefix is configurable.
Compare against the prefix in the configuration file. A mismatch produces this on every table.
CHECKING FOR AN INCOMPLETE IMPORT
Count the tables. A WordPress site has a known minimum; considerably fewer suggests the import stopped partway.
Open the SQL file and check it ends cleanly rather than stopping mid-statement.
RE-IMPORTING
Drop all tables and import again, using the command line for anything large. phpMyAdmin times out on big files.
IF ONE TABLE IS MISSING
A plugin may recreate its own table on reactivation. Try deactivating and reactivating it.
Otherwise restore from a backup.
