Unknown error when installing custom app

[XAS-Moderator]

how many apps do you have on the device? These devices do not come with internal hard drives so you might have hit the max. Please try removing a few apps and try again. I do know there is a kit you can get to increate the hardrive

[afrench157]

Thank you!

I deleted 2 apps and was able to install 1. I had to remove 2 additional to install the second. Any reason that you know of as to why it would be a 2:1 ratio? 

[XAS-Moderator]

How many apps do you have installed on the device. It could be that you have run out of space. Those devices did not come with a hard drive. Try removing some apps and see if you can then install the app.

[afrench157]

Working on a Versalink C405 running 68.51.1 firmware and am trying to add a custom scanning app. When trying to install it errors out on the verifying step with an unknown error.

I tried installing the custom app from the app gallery on the MFP itself with the same result.

The EIP settings look to be correct and SNMP 1/2 is enabled. DNS settings look to be correct as well. 

We have created and installed a number of apps successfully to this device, but it has suddenly stopped working. Any suggestions you may have would be greatly apperciated.