PHP Fatal Error: Vendor Library

Error: Uncaught exception 'ReflectionException' with message 'Class RandomLib\Mixer\1 does not exist' in /vendor/ircmaxell/security-lib/lib/SecurityLib/AbstractFactory.php:50
Stack trace:
#0 /vendor/ircmaxell/security-lib/lib/SecurityLib/AbstractFactory.php(50): ReflectionClass->__construct('RandomLib\\Mixer...')
#1 /vendor/ircmaxell/random-lib/lib/RandomLib/Factory.php(143): SecurityLib\AbstractFactory->registerType('mixers', 'RandomLib\\Mixer', '1', 'RandomLib\\Mixer...')
#2 [internal function]: RandomLib\Factory->registerMixer('1', 'RandomLib\\Mixer...')
#3 /vendor/ircmaxell/security-lib/lib/SecurityLib/AbstractFactory.php(77): call_user_func(Array, '1', 'RandomLib\\Mixer...')
#4 /vendor/ircmaxell/random-lib/lib/RandomLib/Factory.php(204): SecurityLib\AbstractFactory->loadFiles('/home/muraling/...', 'RandomLib\\Mixer...', Array)
#5 /home/muraling/public_html/st

File: /vendor/ircmaxell/security-lib/lib/SecurityLib/AbstractFactory.php
Line: 50