Site Crash

Device: Alienware Aurora R7 - i7
Browser: Chrome Version 95.0.4638.54 (64 bit)
OS: Windows 10

Steps to reproduce: Posted a trade. Refreshed and reset characters typed out. Attempted again, and crashed same error below again. Reset website and cache and still the same issue. Apologies if this is already known

Anything else to add:

Fatal error: Uncaught Twig\Error\SyntaxError: Unexpected character "$". in /home/teebling/ diablo2.io/styles/zulu/template/overall_header.html:312 Stack trace: #0 /home/teebling/ diablo2.io/vendor/twig/twig/src/Lexer.php(281): Twig\Lexer->lexExpression() #1 /home/teebling/ diablo2.io/vendor/twig/twig/src/Lexer.php(182): Twig\Lexer->lexBlock() #2 /home/teebling/ diablo2.io/phpbb/template/twig/lexer.php(129): Twig\Lexer->tokenize(Object(Twig\Source)) #3 /home/teebling/ diablo2.io/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(8492): phpbb\template\twig\lexer->tokenize(Object(Twig\Source)) #4 /home/teebling/ diablo2.io/vendor/twig/twig/src/Environment.php(542): lexer_6d586c2->tokenize(Object(Twig\Source)) #5 /home/teebling/ diablo2.io/vendor/twig/twig/src/Environment.php(595): Twig\Environment->tokenize(Object(Twig\Source)) #6 /home/teebling/ diablo2.io/vendor/twig/twig/src/Environment.php(408): Twig\Environment->compileSource(Object(Twig\Source)) #7 /home/teebling/ diablo2.io/vendor/twig/twig/src/Environment.php(381 in /home/teebling/ diablo2.io/styles/zulu/template/overall_header.html on line 312