Acesef issue : blank pages after upgrading

Hello,
I upgraded the last version of Acesef (1.5.6) and the Flexicontent extension (1.5.2) and now the redirections doesn't work anymore : blank page for every link.
I try to modify the configuration of Acesef but it didn't change anything.
Does someone fix this issue ?

If not, could you please have a look at my configurations and tell me if it's ok ? [attachment=1:c3yddpni]<!-- ia1 -->Image 2.png<!-- ia1 -->[/attachment:c3yddpni][attachment=0:c3yddpni]<!-- ia0 -->Image 3.png<!-- ia0 -->[/attachment:c3yddpni]
Also I never knew if I should active the Sef for the Content Extension or not.[attachment=2:c3yddpni]<!-- ia2 -->Image 1.png<!-- ia2 -->[/attachment:c3yddpni]

Thanks for your support

hello i do this but no error ...
do clean you cache and expired cache ?