Okay so after spending a long time in Littlebigplanet 3 in my PS4 i have came across this error while starting up the game, it says something about the profile being corrupt HOWEVER IT IS NOT (most times) I managed to fix it, HERE IS HOW!
First of all, please make sure you have another profile in your PS4, if not, just create one.

Okay so you are in your main profile, you start LBP3 and that terrible screen shows up, after that happens LOG OUT of your PS4 profile, DO NOT JUST ENTER AS ANOTHER PROFILE, make sure you logged out!

Then you will need to log in with the second profile, after that is done start Littlebigplanet3 and it should tell you that the LBP3 you started with your main account will be closed, accept that and just wait until you drop on your pod.

After all this is done you can log out and start LBP3 with your main account, the corrupted profile screen should no longer appear!

IF IT STILL DOES YOU CAN TRYING ALL THE STEPS ABOVE AGAIN UNTIL IT WORKS! (Unless the corruption screen is caused by another problem which i am not sure i can know how to fix)

It's the first time i write a topic for a forum so any feedback is appreciated, GOOD LUCK EVERYONE!

PS4 errors might look random, but they are actually pretty intuitive to understand. The primary identification of the problem behind the error code can be the prefixed alphabet pair. For example, CE means Common Error, E means Exception, NP means Network of the PlayStation, while simple NW means Network (speaking generally). The problem with each code can have different solutions though, and they're too detailed to write all here, so check out this link: http://errorcodespro.com/ultimate-ps4-error-code-list/ instead.

Thank you guys. It'll help some people here.

To fix PS4 corrupt data error, you need to delete the saved corrupt data file manually

Go to Settings -> System Storage Management -> Saved Data -> Media Player.

Enter into the Media player folder, there should be a 'corrupt data' saved file that shows up.

Press the Options button and delete the saved corrupt data file.

I have been using this technique ever since 2016. However, it only works at certain times.

In order to fix PS4 corrupt profile error, you need to delete the saved corrupt data file manually

(*)Go to Settings -> System Storage Management -> Saved Data -> Media Player.
(*)Enter into the Media player folder, there should be a 'corrupt data' saved file that shows up.
(*)Press the Options button and delete the saved corrupt data file.

Source: http://www.pcerror-fix.com