Getting this error:
PHP Fatal error: Uncaught Error: Call to a member function getSupportedLocaleNames() on null in /home/incecain/public_html/doi.inceca.in/cache/t_compile/65bfc3e024c2e9104f46e23b73376a9455e3df0e^1691b77e190980db1df5625a01cc71407940ba9a_0.app.frontendcomponentsnavigat.php:25
This is only coming after setting theme as Material Theme appearance for the entire site. (Administration → Site settings → Appearance → Theme)
OJS Version : 3.3.0.14
Note: No error if I choose Default Theme
Kindly help me to solve this error