Error parsing MathML: error

Dear @gggggdsfgr,

Thank you for the topic.

We checked and noticed that the error message you are referring to doesn’t have a connection to our plugin.

See the screenshot below:

We don’t have such a message in the plugin.
Please contact the Support Team of the plugin, via which you achieved this result so they can guide you accordingly.

As to the case connected to some questions not being displayed.
Most presumably, there are questions (particularly the Question with the ID 2210) in which the HTML tag hasn’t been closed. 
Due to this, the HTML is displayed incorrectly by the browser thus causing this issue.

The HTML of our plugin shouldn’t be like this:

Please check the questions and make sure there is no problem and all the HTML tags are closed. 

Please check this and let us know about the outcome.

Thank you. 

Dear @gggggdsfgr,

Thank you for your response.

Unfortunately, we aren’t able to provide the IDs one by one each time.
This time, the issue comes from the question with ID 2198. 

There aren’t that many questions in your quiz. 
You can go through them one by one, check which question is causing the problem, and fix it. 

You can either move the question to trash, unpublish it, or delete it from the quiz. 

Please check the case, fix all the issues, and let us know if the problem has been fixed or not.

Thank you.

Dear @gggggdsfgr,

Thank you for your reply.

Glad to hear that the problem has been solved for you.
I will pass the request to our Content Team for future consideration.

Enjoy the plugin and feel free to open a new topic in case of any further questions.

Thank you.