Hello @AYESHA600,
Since we were not able to find out the exact issue we want to inspect the debug log and for this, you have to edit your wp-config file.
Config file will be there inside the WordPress folder. Please have a look into the screen record below:
https://www.loom.com/share/9e900d711b344fb49d760343dad58997
You can edit the config file from the c-panel.
This way all the issues will be listed in the debug-log file and it will be easy for us to inspect the issue.
Thank you.