General error, message from server: "Got error 139 from storage engine".

General error, message from server: "Got error 139 from storage engine".

Hi,

I had a form working fine for quite some time.

Today I've added two dozen text fields to it and tried to modify entries, and got
the following error - General error, message from server: "Got error 139 from storage engine".

Googling up showed that the error is with MySQL InnoDB max row length limitation.

Is there a way to fix it, to make text fields blobs for example ?