Here you go I hope this is the right one
Idk what ur asking about signature i hope this is is V Sorry for the inconvinence if it isn't it i coudnt seem to find what signature means
When using the Mojang launcher both of these files are found in .minecraft\logs and should be posted using Pastebin or GitHub Gists,
where possible use the upload button rather than copy-pasting the contents of the file.
Note: Gist accepts larger files than Pastebin, if logs are massive use Gist.
Do NOT use sites like mediafire, dropbox, onedrive, or, god forbid, a site that has a countdown before offering downloads.