Hello Bilal,
I don't know why my RSS is not working, I have the paid version and the website is : f-job.com
I always getting this

Invalid xml declaration.
Line: 2 Character: 3

<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>Jobs RSS</title><link> f-job.com/ </link><ttl>12</ttl><description>Job RSS Show the Latest Jobs On Our Website</description><copyright>Iraq Job Center</copyright><webmaster>This email address is being protected from spambots. You need JavaScript enabled to view it.</webmaster><editor>This email address is being protected from spambots. You need JavaScript enabled to view it.</editor></channel></rss>