Hi,

I recently confronted this problem that no script is allowed to run on my k2 items only. like soundcloud iframe or google adsense or google snippets. They won't run anymore, I updated the k2 which changed every modification I had on it including the css file. However, it didn't help. and still I can not run scripts insertions there.
Moreover, There is an unknown offcanvas element I believe only on k2 items which makes the horizontal scroll bar very small.
I believe the two problems are related but I am not able to solve it.

Please help.

I deleted the whole k2 and installed it afresh and then created one item and saw that the problem still persist.

One another update. I deleted the whole website and brought back a healthy backup. it worked for one minutes without these problems but then it became defected .

Next update:
I brought back the healthy update but this time I did not update the website to the latest joomla which is now 3.9.4 and everything is working fine . but this is not a final solution because anytime in future I need to update.