The best advice I can give you is to refer you to the help page. Here is a help article for the error code caterpillar. You should also try running a Network Trouble Shoot.
Good luck, Guardian!
https://www.bungie.net/en/Help/Article/11874
https://www.bungie.net/en/Support/Troubleshoot?oid=12915
English
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I have already tried this.
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How did the Trouble Shoot work out?
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i have already tried it, no progress.