Since the application must be completed on the site where the ad was posted, you should follow the instructions provided in the ad itself and, in case of issues, look for support on that specific site.
That being said, we do care that all offers indexed on Jobrapido have a working application process.
So if you aren't able to send your application, please contact us by using the contact page and choosing the “Report an ad” option.
In order to help us perform all the necessary checks, please specify the ad you failed to apply for.