Oh oh

[boriel]

The error is at line 30. ZX Basic requires every IF.. THEN to be closed with END IF. This is because ZX BASIC allows multiline IF. So your code should read:

Code:

10 LET a$="xxxxxxxxxxxxx.com/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.html"
15 CLS
20 LET x=RND*32
21 LET x=INT x
22 LET y=RND*22
23 LET y=INT y
25 LET j=x+y
30 IF j=0 THEN GO TO 20: END IF
55 LET p=RND*9
60 LET i=RND*9
65 LET p=INT p
66 LET i=INT i
75 PAPER p:INK i
80 PRINT AT y,x;a$(j)
90 POKE 22527+RND*704,RND*127
100 GO TO 20