So, it says there's a stack overflow in 19, I have a GOSUB later in it to @PKMBTLSYS, to stop an infinite loop to a part that shouldn't yet be accessed, so, what exactly is wrong, and if you can help, how can I fix it?

Pls download and tell me what I did wrong. I'm done chasing unknowns.

As a kid, who else did this with an Etch-A-Sketch?

What's the syntax error in line 20 and how do I fix it?

Sorry for the low quality. Just testin' out this app. YAY! Extra blooper reel!

Ugh... I'm confused. I run my program, and let's say I choose 4, b/c I want to run (That part doesn't matter. It happens with all choices), then I get an error message that says "Type mismatch in line 5" I've been trying to solve this for two weeks (Got the Banhammer), do you guys know what I did wrong here?

So... Could someone show me how to code a monoalphabetic cipher? I have no clue where to even start.

Error in line 17... Help? All I know comes from Wikibooks. I honestly am missing the slightest clue.