Here are a few Diablo 4 invalid licenses fixes and workarounds for those seeing error code message 315306 show up on PS4, PS5.
Unable to find valid license Diablo 4 error code 315306 explained
Diablo 4 code 315306 – unable to find a valid license
Diablo 4 error code 315306 and 'unable to find valid license' has an easy fix
Diablo 4 395002, 315306, 300008 and 300202 errors explained
Diablo 4: Invalid License Error [FIXED] - VeryAli Gaming
How To Fix Diablo 4 Error Code 315 306 Unable to find a Valid License - PS4 / PS5
Diablo 4 - This might Fix Error Code 315306 (All information without guarantee!)
Unable to find valid license (code 315306) 🥴🥴 : r/diablo4
How to Fix Error Code 315306 in Diablo 4 - Green Hat Expert
Diablo 4 - This might Fix Error Code 315306 (All information without guarantee!)
Login Issue Code 315306 : r/diablo4
Diablo 4 Invalid License Fixes Listed for Error Code 315306 on PS4, PS5
Diablo 4 Invalid License issue: Code 315306 error explained - Dexerto