iīm sorry to tell, but it seems thereīs a problem with your pasted text.
when you open this file on your computer with a notepad/editor, can you read it?
because something happened to the pasted file. itīs unreadable
how have you done the copy/paste to pastebin?
try this way please:
step1: open file in notepad/editor
step2: left click anywhere inside the text
step3: "ctrl+a" (mark all text, should be blue)
step4: "ctrl+c" (copy blue marked text)
step5: go to pastebin.org and rightclick inside the empy textfield -> paste (or "ctrl+v")
step6: now you should see the posted text inside the field (readable!!)
step7: click on "create new paste"
note: you can do the same with all (TEXT-)files needed (relhaxlog.txt, python.log, lastinstalledconfig.xml, RelHaxSettings.xml).
note #2: if you copied all files into a .zip-file, this canīt be uploaded to pastebin!
for uploading zips you can use a filehoster, like https://www.zippyshare.com/