From settings , apps , locate linkedin app, force stop it, delete data and cache. Then, proceed to reinstall it. If the issue persists, get a usb cable and connect it to pc (or laptop), then connect it to your phone. Before the battery charge indicator lights up, press and hold Power + volume up buttons. Once the samsung logo shows up, release the buttons. You are in the recovery menu, use volume up/down keys to navigate, and power button to select. CAREFUL :::: Select ONLY "WIPE CACHE PARTITION". If you select "reset phone" or wipe phone data, you will lose ALL your personal data.
Let us know if the issue is fixed when you can.
