Hi Babynus,
I ended up finding my problem.
Thanks to the loading problem of PHP class html2pdf, I realized that my instance of PHP was corrupted (or unstable, understand it as you like).
So I updated my PHP from 7.0 to 7.3.
But then, I encountered other issues.
Indeed, I could not connect anymore. I encountered these error messages :
1 2019-01-15 12: 23: 54.170 ===== TRACE ===== Login error for user '% xêiæ] 3'
2 2019-01-15 12: 37: 08.879 ===== TRACE ===== Login error for user '# Ó <9f> ù|) <96>'
3 2019-01-15 13: 10: 31.708 ===== TRACE ===== Login error for user '<93> 9xçk ^? Ö'
4 2019-01-15 13: 16: 02.992 ===== TRACE ===== Login error for user '^ E4C3y <89> ³'
5 2019-01-15 13: 27: 55.943 ===== TRACE ===== Login error for user 'ÅG <97> © Ã ©')
6 2019-01-15 13: 32: 47.295 ===== TRACE ===== Login error for user '38BÎ ^ W = <97>'
This was similar to the error messages found on the thread
www.projeqtor.org/en/forum/5-ask-questio...login-error-for-user
Looking at the php logs, I had the following error messages :
[15-Jan-2019 15:04:33 Europe / Paris] PHP Warning: session_start (): The session id is too long or contains illegal characters, valid characters az, AZ, 0-9 and '-,' in /usr/share/projeqtor/tool/projeqtor.php on line 39
[15-Jan-2019 15:04:33 Europe / Paris] PHP Warning: session_start (): Failed to read session data: files (/var/lib/php/session) in /usr/share/projeqtor/tool/projeqtor.php on line 39
In fact, I simply had to erase from my browser the cookies of my projeqtor.
In fine, I successfully upgraded to v7.3.3.
Thank you Babynus.
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