wpDiscuz - Star rating! Error!

 Hello!

Thank you for the excellent plugin wpDiscuz!

There is a problem, I included a star rating on the site.
If a guest makes an assessment, for example 5 stars and writes a comment,
I need to go to the admin panel and approve his comment, since I have a check
"Comment must be approved" 
After I approved the comment, I can not change it, I get an error!

And the guest of the site can not change his comment!

Notice: Uninitialized string offset: 0 in /home/o/oneportalr/pro/public_html/wp-content/plugins/wpdiscuz/forms/wpdFormAttr/Form.php on line 171

Fatal error: Cannot use string offset as an array in /home/o/oneportalr/pro/public_html/wp-content/plugins/wpdiscuz/forms/wpdFormAttr/Form.php on line 171

When I disable the function in the admin panel "The comment must be approved manually" it star rating works well.

Additionally.

If the guest voted, for example, put five stars, then the table in the database is not created:

wpdiscuz_rating_count

Please tell me how it can be fixed?