Not being able to use launcher hijack with non-launchers

[HasoonKonyali]

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Describe the bug
when i selected the application i wanted (ewelink cast) it did not work when i restarted the tablet and this makes me think that launcher hijack does not support regular applications but why would they bother add a launchers only button if they dont support applicationsand if they do support applications can anyone please help me start up this application called "ewelink cast" it is an apk application by the way

Fire tablet 10 HD, Launcher Hijack version 4.0.3