Hi dear
If you go to the SLIDES page in the plugin admin panel, hover over a slide and click View, does it correctly open the permalink page for that slide post?
Yes it is correctly open
Try creating a new page, using the default WordPress editor, and putting no content on it other than the slider shortcode
Dose that But got same 503
Then it could be a conflict with another plugin. As a test, disable all your plugins, but ours, and see if that makes a difference. From there, you would need to activate your plugins one by one until the issue reoccurs.
I also done that but getting same 503
Don’t know what the wrong i am doing, Hope you can assist some more to solve this issue
Thank you