# BTC/Lightning Addresses BLANK?

**URL:** <https://community.umbrel.com/t/btc-lightning-addresses-blank/1883>\
**Category:** Support and Troubleshooting\
**Created:** [July 5, 2021, 3:20pm UTC](https://community.umbrel.com/t/btc-lightning-addresses-blank/1883 "2021-07-05T15:20:33Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![laba2030](https://avatars.discourse-cdn.com/v4/letter/l/c0e974/32.png) [@laba2030](https://community.umbrel.com/u/laba2030)\
**Post date:** [July 7, 2021, 10:44am UTC](https://community.umbrel.com/t/btc-lightning-addresses-blank/1883/6 "2021-07-07T10:44:55Z")

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Looking into lnd’s log file, I found that the lnd service was restarting every 1 minute. The lnd wallet was actually being unlocked for about 2 or 3 seconds, then locked again for about 57 seconds until next restart. This cycle was repeating forever.

After some experiments, I also found that the cause of this ‘lnd restart loop’ was that there was a Tor connection problem.

Execute  
`ls -alt ~/umbrel/lnd`

If you see a file named ‘v3\_onion\_private\_key’ with a size of 0 bytes, then you need to delete it.  
In my case, it started to work fine after deleting the file.

Just as a reference, here is a part of my lnd log. [https://pastebin.com/E6ZsKTpu](https://pastebin.com/E6ZsKTpu)

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