Extended precision library

[robmio]

Hello, I find it difficult to make ”Extended Precision Library” work.
In fact, after having transferred the three programs in the HP PRIME virtual calculator, ie "multiprecision", "mutiprecision2" and "testmulti", and after having opened them (shift program, EDIT), I get an error message:
1) In “multiprecision”, I get an error on line 265;
2) In “multiprecision2”, I get an error on line 170;
3) In “testmulti”, I get an error on line 108;
Where am I doing wrong?
Yours sincerely, Roberto Mioni