V2.1.2 Critical Error | WordPress.org

Since updating to v2.1.2, and now getting a critical error when accessing website whilst logged in (is ok if not logged in i.e. on a fresh browser)

Disabling plugin fixed issue and can then access wp-admin again

Stack trace below

13 {main}

thrown in /home/latexcou/public_html/domain.name/wp-content/plugins/eventon-lite/includes/class-rest-api.php on line 22
[12-Jun-2023 12:13:35 UTC] PHP Fatal error: Uncaught Error: Access to undeclared static property EVO_Rest_API::$version in /home/latexcou/public_html/domain.name/wp-content/plugins/eventon-lite/includes/class-rest-api.php:22
Stack trace:

0 /home/latexcou/public_html/domain.name/wp-includes/class-wp-hook.php(308): EVO_Rest_API->rest_routes(Object(WP_REST_Server))

1 /home/latexcou/public_html/domain.name/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)

2 /home/latexcou/public_html/domain.name/wp-includes/plugin.php(517): WP_Hook->do_action(Array)

3 /home/latexcou/public_html/domain.name/wp-includes/rest-api.php(577): do_action('rest_api_init', Object(WP_REST_Server))

4 /home/latexcou/public_html/domain.name/wp-includes/rest-api.php(403): rest_get_server()

5 /home/latexcou/public_html/domain.name/wp-includes/class-wp-hook.php(308): rest_api_loaded(Object(WP))

6 /home/latexcou/public_html/domain.name/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array)

7 /home/latexcou/public_html/domain.name/wp-includes/plugin.php(565): WP_Hook->do_action(Array)

8 /home/latexcou/public_html/domain.name/wp-includes/class-wp.php(399): do_action_ref_array('parse_request', Array)

9 /home/latexcou/public_html/domain.name/wp-includes/class-wp.php(780): WP->parse_request('')

10 /home/latexcou/public_html/domain.name/wp-includes/functions.php(1334): WP->main('')

11 /home/latexcou/public_html/domain.name/wp-blog-header.php(16): wp()

12 /home/latexcou/public_html/domain.name/index.php(17): require('/home/latexcou/…')