1. 0_comments table has no primary key. Correct it with:

ALTER TABLE `0_comments` ADD PRIMARY KEY (`type`, `id`), DROP INDEX `type_and_id`;

2. Table field 0_gl_trans.person_id is tinyblob Nullable. In some cases it is a blank string and in others it is 0 when not a valid integer.

3. Table field 0_gl_trans.person_type_id is 1, 2, or 3 and NULL.