MCPEDL for Minecraft 4+

Great way to download mods, it worked for a week until I encountered a glitch. This glitch destroys the function of installing mods onto Minecraft. How it works is when I attempt to install a mod I have downloaded, it won’t allow me to. This only seems to happen with mods I already installed before. In further detail, after downloading a mod, a large green button titled install will show up in place of the download button. When tapped, it pulls up a bar with the mod file name and how many megabytes it takes up. There is a little green upload button to the right of the bar that when tapped, should pull up another bar with a list of apps to upload it to. However, when I tried it one time, it was unresponsive, which prevented me from installing the mod onto Minecraft. Please fix this in your next update if possible.

So I really wanted a military vehicle and when I got it it was it invisible like everything in that model is invisible so just don’t get anything it has vehicles in it or like vehicles that you can’t get in 10 out of 10 if it’s SCP because it’s really fun because it’s just really good and I don’t want to make this sound bad but it crashes a lot and usually you can’t see what it is

So, i love this app. I use it a lot and it's really convenient, but i have been experiencing a problem for the last few hours where if i have downloaded a mod once, i can't download it again. I deleted the mod files from my device do to an error and now i can't re-download the mods. The green download option does not respond when i press it, i can only download new mods.
I'm really stressed about this because i need to re-download some mods do to them having some errors :(
Please fix this.