it will usually take us the Mojang logo and won't load even if you restart the Playstation. The only way to fix it at the moment is to uninstall and reinstall Minecraft. It mostly happens when I close Minecraft using the quick menu while being on Minecraft.
Related issues
Comments

Thank you for your report!
We're actually already tracking this issue at MCPE-84790, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki