Hello Seema R B,
The restriction is applied because there are a lot of outdated posts regarding the Job posting. Many of the members have posted job news that was very old. So right now the section has a restriction and till then we can contribute to other sections. We will have to wait till the Webmaster or Web admin removes the restriction.
As you have joined this site recently, I think that you have landed on one of the best sites where you could earn while contributing in various sections. Till then you can contribute in forum section, resource section, etc. Choose according to your liking and remember this is a genuine site where you could earn and learn as well. If you need any further assistance regarding any query please post it in forum section.
Remember everyday counts so start contributing and you will surely earn while learning.
Have a nice day.
"Don't Worry about Results, Its time to Perform every now and then" - Pravin Chavre.