How to deal with insufficient memory error?

A

AC Question

I am using ZTE Kis3max. I have a memory card but I can't install any app on memory card space. How can I do that? I can't make any updates because of insufficient memory. Initially I could install a new app if I remove another app to make space, but now I can't even do that. I just removed a big app to make space and now I have more than 100mb available on internal storage, but I can't install or update anything, even the apps which were installed before on the same space.
Kindly help me how can I use my memory card space to install more space or use the 100mb of internal storage?