Error on single file but other files worked.

[omariobros]

PHP Fatal error: Uncaught TypeError: Argument 1 passed to PHPDeobfuscator\Utils::getValue() must implement interface PhpParser\Node, null given, called in /root/deobfu/PHPDeobfuscator/src/Reducer/MiscReducer.php on line 30 and defined in /root/deobfu/PHPDeobfuscator/src/Utils.php:59 Stack trace: #0 /root/deobfu/PHPDeobfuscator/src/Reducer/MiscReducer.php(30): PHPDeobfuscator\Utils::getValue(NULL) #1 /root/deobfu/PHPDeobfuscator/src/Reducer/AbstractReducer.php(40): PHPDeobfuscator\Reducer\MiscReducer->reduceTernary(Object(PhpParser\Node\Expr\Ternary)) #2 /root/deobfu/PHPDeobfuscator/src/ReducerVisitor.php(56): PHPDeobfuscator\Reducer\AbstractReducer->reduce(Object(PhpParser\Node\Expr\Ternary), Object(PHPDeobfuscator\ReducerVisitor)) #3 /root/deobfu/PHPDeobfuscator/src/ReducerVisitor.php(38): PHPDeobfuscator\ReducerVisitor->reduceNode(Object(PhpParser\Node\Expr\Ternary)) #4 /root/deobfu/PHPDeobfuscator/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(153): PHPDeobfuscator\ReducerVisitor->leaveNode(Object(PhpParser\Node\E in /root/deobfu/PHPDeobfuscator/src/Utils.php on line 59

Any idea what could cause this error?