@hamza96 Ok so not you uploading but viewing chapters and they only have 1 page?
1-Make sure the manga you view aren't webcomic with only 1 page each chapter
2- If you're sure they are multiple pages per chapter, then maybe it's just in single page mode, you should be able to go to next page with arrow buttons or click/tap. If you want to change viewer mode, go into your reader setting (cog icon on right side panel within the chapter view), choose long strip mode
3- If it's not reader mode, then check if you have any adblock or scriptblock running for MD and disable then
4- Also try to clear cache for good measure