I’ve never seen this message before whilst trying to preview what I’ve put. I’ll copy it now, if someone can explain what it means I’d be very grateful!!
Error: Cannot enlarge memory arrays. Either (1) compile with - s Total_MEMORY=X with X higher than the current value 268435456, (2) compile with s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORT_MALLOC=0