how to resolve this issue, actually I made a htaccess file in htdocs folder for increasing the upload size limit maybe this is happening because of this.
I checked your htdocs folder, and right now, there is no .htaccess file at all anymore. So the first step to fix this issue is to restore the .htaccess file.
The upload limit on free hosting cannot be edited, including with .htaccess rules.
Right now, when I check your website, it seems to redirect to /admin/index.php, which does not look like a pretty URL, and implies that there should be a file with that name on your account. However, there is no admin folder in your htdocs folder.
I don’t recognize your website software, and it looks like it could be custom coded. But please make sure that all files of your website are successfully uploaded to your hosting account.
It’s your website, I don’t know how it’s supposed to work.
Judging by what you said, I would guess that there would be a .htaccess file, and it definitely appears that there should be an admin folder, because that’s what your home page is redirecting to.
But that’s just a guess from my part. If you’re having trouble setting up particular website code, please contact the developer about this.