Random Crash of NSIS-Installer

[LSI_Riedel]

Well, I'd like to edit my message accordingly (ie. pastebin), but it seems the edit pencil symbol isn't present, although I'm logged in. Please help out with this.

Edit:
And in posting this second message, I'll find the edit button is present with it only.
Please explain, as I'm new to this forum. Thanks so much in advance.