Copy-paste fix pattern
library CB-Storage
fn main() {
string text = CB-Storage.read_text_or("player.cb", "0")
save parse_u256_or(text, zero)
}Why it happens
A .cb file failed validation, was edited manually, or does not match the expected ClosedBit storage shape.
How to fix it
Regenerate the save through CB-Storage or fall back to a default value when reading.
If the IDE reports a line number, fix that line first, then scan the previous line for an unclosed string, bracket, or block.