I can confirm this crash:
Flash openpli-6.2-release-hd51-20180618_usb.zip
Tuner set,
Nothing scanned or installed
Install plugin from the plugins download menu (no transferring of files)
Restart
Open list of recordings
Press menu,
Start Movie manager plugin
Crash
skin=PLi-FullNightHD/skin.xml sourcedate=2018-06-07 branch=release-6.2 rev=a7f41fc component=Enigma2 stbmodel=hd51 stbmodel=hd51 kernelcmdline=root=/dev/mmcblk0p3 rw rootwait hd51_4.boxmode=1 brcm_cma=440M@328M brcm_cma=192M@768M console=ttyS0,115200 nimsockets=NIM Socket 0: imageissue=openpli 6.2-release %h ADD Peer vusolo4k=vusolo4k.local:8001 ADD Peer vusolo4k=vusolo4k.local:8001 Traceback (most recent call last): File "/usr/lib/enigma2/python/mytest.py", line 208, in processDelay callback(*retval) File "/usr/lib/enigma2/python/Screens/MovieSelection.py", line 1208, in doneContext File "/usr/lib/enigma2/python/Screens/MovieSelection.py", line 2027, in do_moviemanager File "/usr/lib/enigma2/python/mytest.py", line 297, in open dlg = self.current_dialog = self.instantiateDialog(screen, *arguments, **kwargs) File "/usr/lib/enigma2/python/mytest.py", line 240, in instantiateDialog return self.doInstantiateDialog(screen, arguments, kwargs, self.desktop) File "/usr/lib/enigma2/python/mytest.py", line 257, in doInstantiateDialog dlg = screen(self, *arguments, **kwargs) TypeError: __init__() takes exactly 3 arguments (4 given)