AOZ Studio V1 (TBD bugs clean/-> V2)

For example, for any of the following:

Print Abs(-30.5)
Print Sin(60)
Print Cos(90)

...when placing the cursor just after the function name, the result is a help box for:

Print ITEMS

...vs...

= Abs(number)
= Sin(number)
= Cos(number)

Even by themselves, Sin and Cos don't work properly.
The help comes up, but there is no heading.
An error is also displayed:

File system not available at line: 811, column: 5 in file main.aoz

NOTE: There IS NO main.aoz!!! (The code had a name like BugXYZ.aoz)