Memleak new Config

Error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 8192 bytes)
File: /src/pocketmine/utils/Config
Line: 132
Type: E_ERROR

Code:
[123] 				$extension = explode(".", basename($this->file));
[124] 				$extension = strtolower(trim(array_pop($extension)));
[125] 				if(isset(Config::$formats[$extension])){
[126] 					$this->type = Config::$formats[$extension];
[127] 				}else{
[128] 					$this->correct = false;
[129] 				}
[130] 			}
[131] 			if($this->correct === true){
[132] 				$content = file_get_contents($this->file);
[133] 				switch($this->type){
[134] 					case Config::PROPERTIES:
[135] 					case Config::CNF:
[136] 						$this->parseProperties($content);
[137] 						break;
[138] 					case Config::JSON:
[139] 						$this->config = json_decode($content, true);
[140] 						break;
[141] 					case Config::YAML:
[142] 						$content = self::fixYAMLIndexes($content);