Installed and activated plugin ok.
When I try to go to settings…
Current plugin: CRM Salesforce LearnDash Integration (version 1.0.1)
PHP version 7.3.16-1+0~20200320.56+debian9~1.gbp370a75
Error Details
=============
An error of type E_ERROR was caused in line 265 of the file /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/Extension/CoreExtension.php. Error message: Uncaught Error: Class 'Twig\TwigTest' not found in /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/Extension/CoreExtension.php:265
Stack trace:
#0 /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/ExtensionSet.php(440): Twig\Extension\CoreExtension->getTests()
#1 /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/ExtensionSet.php(420): Twig\ExtensionSet->initExtension(Object(Twig\Extension\CoreExtension))
#2 /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/ExtensionSet.php(394): Twig\ExtensionSet->initExtensions()
#3 /public_html/wp-content/plugins/crm-salesforce-learndash-integration/vendor/twig/twig/src/Environment.php(972): Twig\ExtensionSet->get