Technic Launcher Keeps Reappearing after Pressing Play

[faithifel]

Hello, I've just downloaded the Technic Launcher and downloaded the Pixelmon Modpack today.

When I tried to press play it shows the loading bar and loads for a few seconds and then closes the Technic Launcher. After a few seconds it reopens the launcher acts like nothing happened and minecraft doesn't appear at all.

I uploaded the launcher log file and also have a paste bin just in case https://pastebin.com/E2neKAGU

 

techniclauncher_2019-08-16.log

[JaariAtmc]

So, why'd you add LegacyJavaFixer, a mod specially made for 1.6.4?

[Munaus]

custom pack issue. Moved to Platform Pagoda