how to solve this problem please explain
What have you tried so far?
What have you tried for kio4 pdf, but dont ask details for deep host. Our community is no more responsible or unanswerable towards his woinderful extensions errors as he is no more active in our community.
It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.
To get an image of your blocks, right click in the Blocks Editor and select “Download Blocks as Image”. You might want to use an image editor to crop etc. if required. Then post it here in the community.