PHP Fatal error

[SARCASMISH]

Tried php <path to "oci-arm-host-capacity" folder> index.php in Powershell and got error with this output:

PHP Fatal error:  Uncaught Dotenv\Exception\InvalidFileException: Failed to parse dotenv file. Encountered an unexpected escape sequence at ["C:\Users\prime\Documents\OCI keys\oci\prime.bridge.most@gmail.com_2023-05-05T13_46_48.939Z.pem"]. in C:\Users\prime\oci-arm-host-capacity\vendor\vlucas\phpdotenv\src\Parser\Parser.php:30

Stack trace:
#0 C:\Users\prime\oci-arm-host-capacity\vendor\graham-campbell\result-type\src\Error.php(118): Dotenv\Parser\Parser::Dotenv\Parser\{closure}()
#1 C:\Users\prime\oci-arm-host-capacity\vendor\vlucas\phpdotenv\src\Parser\Parser.php(29): GrahamCampbell\ResultType\Error->mapError()
#2 C:\Users\prime\oci-arm-host-capacity\vendor\vlucas\phpdotenv\src\Dotenv.php(222): Dotenv\Parser\Parser->parse()
#3 C:\Users\prime\oci-arm-host-capacity\vendor\vlucas\phpdotenv\src\Dotenv.php(237): Dotenv\Dotenv->load()
#4 C:\Users\prime\oci-arm-host-capacity\index.php(19): Dotenv\Dotenv->safeLoad()
#5 {main}
  thrown in C:\Users\prime\oci-arm-host-capacity\vendor\vlucas\phpdotenv\src\Parser\Parser.php on line 30

P.S. Just replace \ in path to your private key to /.