Thread:Project:Support desk/MySQL错误: 1146: Table 'my wiki.math' doesn't exist (localhost)/reply

It means that the table "my_wiki.math" in your database is missing. The fix is to create this table.

I am not completely sure how to do that. I could imagine that it gets created when you execute the maintenance script update.php. Another way would be to check the installation instructions for the math extension, they should also tell what to do to get the extension running.

PS: This is the file with the instructions which are used to create the table. If everything else fails, you could use them to create it manually.