What is the meaning of Full Stash in Terracore?

Hello everyone,
How are you all? I hope everyone is fine and doing great in their life.

It's been some time, a good time since I upgraded my terracore base and that is why today when I opened terracore I saw that there were multiple penalties on my terracore base. My attack count was reduced down to 6 and engineering and damage were also reduced accordingly which you can see below.

I upgraded my stats today and used a good amount of scraps but before I share what I upgraded, I will like to share the problem of full stash in terracore game. I attacked and used my 6 attacks at once and that is when I saw that two of those attacks were not dodged but giving an output known as stash full.

At first I thought that these full stash attacks are also counted and reduced from the total number of attacks that we have but I just saw after attacking that my attack count was only reduced by 4 counts and 2 attacks were still there so it means stash full attack is just not counted and you can use it again immediately.

And well let me also tell what all I upgraded today. I went on with three stats today where I spent 1000 scraps each on favor and Stash size and apart from that the necessary upgrade is always the damage stat so I upgraded it as well. Have a look below to see my new stats and also how the attacks count is still 2.

After seeing this I used my attacks again and this time I was able to gather scraps without that error. See below!

The only thing I do not know now is how and why that error comes while we are attacking others. If anyone reading here knows the reason of it can share it with me in the comments below.

Thank You