Fatal error: Uncaught Error: Undefined constant 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES' in F:\xampp\htdocs\xenforo219-test\src\vendor\paragonie\sodium_compat\lib\constants.php:20 Stack trace: #0 F:\xampp\htdocs\xenforo219-test\src\vendor\paragonie\sodium_compat\lib\sodium_compat.php(825): require_once() #1 F:\xampp\htdocs\xenforo219-test\src\vendor\paragonie\sodium_compat\autoload.php(45): require_once('F:\\xampp\\htdocs...') #2 F:\xampp\htdocs\xenforo219-test\src\vendor\composer\autoload_real.php(66): require('F:\\xampp\\htdocs...') #3 F:\xampp\htdocs\xenforo219-test\src\vendor\composer\autoload_real.php(56): composerRequireec13230cd79e563a6cc995d16a3f88cd('3109cb1a231dcd0...', 'F:\\xampp\\htdocs...') #4 F:\xampp\htdocs\xenforo219-test\src\vendor\autoload.php(7): ComposerAutoloaderInitec13230cd79e563a6cc995d16a3f88cd::getLoader() #5 F:\xampp\htdocs\xenforo219-test\src\XF.php(226): require('F:\\xampp\\htdocs...') #6 F:\xampp\htdocs\xenforo219-test\src\XF.php(73): XF::startAutoloader() #7 F:\xampp\htdocs\xenforo219-t in F:\xampp\htdocs\xenforo219-test\src\vendor\paragonie\sodium_compat\lib\constants.php on line 20