Short answer: yes
Long answer: after pulling out the battery… I always install updates via recovery, so I installed this version a 3rd time, now LOS has started up again (puhh)
I think I won’t update my phone while I’m at work any time soon.
Update 22.03.2018
I think after some stable days, it’s ok to say that the combination of old Gravitybox and new LOS caused the troubles, let’s see how the next version of LOS behaves 
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