FP3 /e/OS Block during Boot

I have a problem with my Fairphone 3 under /e/OS. When I turned it on this morning, it was stuck on the start screen (with Fairphone written on it).
I tried to enter the fastboot, the secure boot is disabled and the phone is locked. I also tried to enter the recovery mode, but nothing happened, I found the start screen.
I also tried to find it with my computer (under ubuntu) thanks to the command adb devices, and no phone is found.
What can I do?
Thanks in advance for your help.

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