Unable to Add any Plugins
**Description**
Every plug in I try to install fails with a similar error

**Version**
4.0.98

**Did you upgrade**
Please let us know if you upgraded from a previous version.
- [ ] Yes
- [x ] No

**Pervious version**
If you upgraded, please let us know your previous version.

**Did you orginally upgrade to HOOBS 3 from HOOBS 2.1.1?**
Did you perform an upgrade from HOOBS 2.1.1? Some things are different.
- [ ] Yes
- [ x] No

**What device are you using?**
Please let us know the device you are running HOOBS on.
- [ ] HOOBS Box
- [ ] HOOBS SD Card
- [ x] Custom Install

**If this is a custom install, what's your operating system?**
Raspberry pi4

**List your plugins**
Ring plug only

**Post your config**
This can be found in the interface, Configuration -> Advanced or you can get it via SSH `cat ~/.hoobs/etc/config.json`

* Remove any passwords from the config file. This is public.

```
POST CONFIG HERE
```

**Post your log**
8/9/2021, 11:26:25 AMDummy Bridge starting8/9/2021, 11:26:27 AMDummy BridgeInitializing HAP-NodeJS v0.9.4...8/9/2021, 11:26:34 AMyarn add v1.22.108/9/2021, 11:26:35 AMinfo No lockfile found.8/9/2021, 11:26:35 AM[1/4] Resolving packages...8/9/2021, 11:26:35 AM[2/4] Fetching packages...8/9/2021, 11:26:35 AMerror An unexpected error occurred: "/usr/local/share/.cache/yarn/v6/npm-node-persist-2.1.0-e652bbf3885a04dad6a353d74176177c83914707-integrity/node_modules/node-persist/.yarn-metadata.json: Unexpected end of JSON input".8/9/2021, 11:26:35 AMinfo If you think this is a bug, please open a bug report with the information provided in "/var/lib/hoobs/dummybridge/yarn-error.log".8/9/2021, 11:26:35 AMinfo Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.8/9/2021, 11:26:36 AMDummy BridgeWarningNo plugins installed.8/9/2021, 11:26:36 AMDummy BridgePreparing Advertiser for 'Dummy Bridge F63D' using bonjour-hap backend!8/9/2021, 11:26:36 AMDummy BridgeStarting to advertise 'Dummy Bridge F63D' using bonjour-hap backend!8/9/2021, 11:26:36 AMDummy BridgeBridge is running on port 51846.

```
POST LOG HERE
```

**Additional context**
Add any other context about the problem here.
