Fatal Error

My page has a fatal error that seems to be caused by Woo-vips:
Fatal error: Uncaught Error: Call to a member function set_custom_path() on null in /home/u479901513/domains/butikk.opaker.no/public_html/wp-content/plugins/woo-vipps/Vipps.class.php:87 Stack trace: #0 /home/u479901513/domains/butikk.opaker.no/public_html/wp-content/plugins/woo-vipps/Vipps.class.php(2115): Vipps::load_plugin_textdomain() #1 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/class-wp-hook.php(307): Vipps->plugins_loaded() #2 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters() #3 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/plugin.php(474): WP_Hook->do_action() #4 /home/u479901513/domains/butikk.opaker.no/public_html/wp-settings.php(450): do_action() #5 /home/u479901513/domains/butikk.opaker.no/public_html/wp-config.php(83): require_once(‘/home/u47990151…’) #6 /home/u479901513/domains/butikk.opaker.no/public_html/wp-load.php(50): require_once(‘/home/u47990151…’) #7 /home/u479901513/domains/butikk.opaker.no/public_html/wp-blog-header.php(13): require_once(‘/home/u47990151…’) #8 /home/u479901513/domains/butikk.opaker.no/public_html/index.php(17): require(‘/home/u47990151…’) #9 {main} thrown in?/home/u479901513/domains/butikk.opaker.no/public_html/wp-content/plugins/woo-vipps/Vipps.class.php?on line?87

When i try to udate plugin using wp-cli this error happens:

-bash-4.2$ wp plugin update woo-vipps

Fatal error: Uncaught Error: Call to a member function set_custom_path() on null in /home/u479901513/domains/butikk.opaker.no/public_html/wp-content/plugins/woo-vipps/Vipps.class.php:87

Stack trace:

#0 /home/u479901513/domains/butikk.opaker.no/public_html/wp-content/plugins/woo-vipps/Vipps.class.php(2115): Vipps::load_plugin_textdomain()

#1 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/class-wp-hook.php(307): Vipps->plugins_loaded()

#2 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()

#3 /home/u479901513/domains/butikk.opaker.no/public_html/wp-includes/plugin.php(474): WP_Hook->do_action()

#4 /home/u479901513/domains/butikk.opaker.no/public_html/wp-settings.php(450): do_action()

#5 phar:///usr/local/bin/wp-cli-2.6.0.phar/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1317): require('/home/u47990151...')

#6 phar:///usr/local/bin/wp-cli-2.6.0.phar/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1235): WP_CLI\Runner->load_wordpress()

#7 phar:///usr/local/bin/wp-cli-2.6.0.phar/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php(28): WP_CLI\Runner->start()

#8 phar:///usr/local/bin/wp-cli-2.6.0.phar/vendor/wp-cli/wp-cli/php/bootstrap.php(78): WP_CLI\Bootstrap\LaunchRunner->process()

#9 phar:///usr/local/bin/wp-cli-2.6.0.phar/vendor/wp-cli/wp-cli/php/wp-cli.php(27): WP_CLI\bootstrap()

#10 phar:///usr/local/bin/wp-cli-2.6.0.phar/php/boot-phar.php(11): include('phar:///usr/loc...')

#11 /usr/local/bin/wp-cli-2.6.0.phar(4): include('phar:///usr/loc...')

#12 {main}

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