Hello,
Whenever I’m creating an event and I’m selecting category event and tag event from mobile, It’s not displaying anything. I’m attaching 2 video: 1 from desktop (which is ok) 1 from mobile (which has the issue) I was investigating and I found out that your theme seems to be using deprecated (old) javascript functions that could cause this problem. I’m attaching a screenshot about it.

Can you help me to solve the problem?

Thank you
B. Regards

Sara