i cannot tell from that screenshot what your issue is.
It shows me where it failed, but not why it failed.
Im sorry i dont know where i found why its failed but i found below from crash logs
Code
main thread is non-idle! display spinner!
Python stack trace:
/usr/lib/python2.7/json/decoder.py(370): raw_decode
/usr/lib/python2.7/json/decoder.py(359): decode
/usr/lib/python2.7/json/__init__.py(294): loads
/usr/lib/enigma2/python/Plugins/Extensions/JediMakerXtream/downloads.py(140): downloadlivestreams
/usr/lib/enigma2/python/Plugins/Extensions/JediMakerXtream/update.py(259): downloadLive
/usr/lib/enigma2/python/enigma.py(8485): __call__
/usr/lib/enigma2/python/e2reactor.py(189): mainLoop
/usr/lib/python2.7/site-packages/twisted/internet/base.py(1190): run
/usr/lib/enigma2/python/mytest.py(201): runReactor
/usr/lib/enigma2/python/mytest.py(616): runScreenTest
/usr/lib/enigma2/python/mytest.py(1): <module>
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