Form Submission API
Before adding plugins to page configure personio APIs and Scheduler!
Please configure this API for Submitting application form successfully

Step:1 Go to Admin tools>Settings
Step:2 Click on configure extensions
Step:3 Select ns_personio
Step:4 Add Application submit API
Step:5 Add Documents Submit API and save the configuration
Configure Scheduler
Please configure schedular for fatching Data from personio API

Step:1 Go to System>Scheduler
Step:2 Select Task
Step:3 Select Schedulable Command
Step:4 Add Personio Account API,You can get It from https://support.personio.de/hc/en-us/articles/207576365-Integrate-positions-from-Personio-into-your-company-website-via-XML
Step:5 Add Language Uid from site management, you can create Multiple scheduler according to diffrent languages!
Step:6 Page ID where to persist new or updated jobs
All done now you can configure plugins to your pages!