QPython3 aims to to provide limited features Python3 scripting engine for the most Android systems which from 4.3+ to 9.0
The source code is being sorted out.
In order to benefit those guys who have the same issue with QPython, we suggest that you should ask the issue which is related with QPython within public techical communities.
Please tell us your phone's informatioin, android os information, QPython version, where did you install it and the detailed stituation you have encountered.