Sounds like your tank isn't making a good connection with your mod. It sounds like the mod since your tank is working on other mods. Though, I've never heard of the second error either. Could be an issue with your 510 connection in the mod but if I were getting those kinds of errors, I'd be more prone to return it for warranty than trying to use multiple possible remedies to fix it, if it's brand new. There are several remedies, but since that doesn't seem to be a known issue on that mod, it may be defective, and since you have other mods to use, warranty/repair seems to me to be the best option....
Best of luck,
Anna