[SOLVED] Can't update Backup server, dpkg problem

Oct 1, 2019
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Hello,
My PBS runs fine but I can't update anymore :
I am stuck with the libldb1 update for the last weeks and now can't update for the 1.1 too.
With the gui or the apt-get upgrade command I get :
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem
I tried the command, many times, the window restart but no update...
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What ca I do to unlock ?
thanks a lot.