Error with Plugin installation

Error Details
=============
An error of type E_ERROR was caused in line 5 of the file /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/includes/class-woo-variation-swatches-pro-blocks.php. Error message: Uncaught Error: Class “Woo_Variation_Swatches_Blocks” not found in /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/includes/class-woo-variation-swatches-pro-blocks.php:5
Stack trace:
#0 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/includes/class-woo-variation-swatches-pro.php(28): require_once()
#1 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches/includes/class-woo-variation-swatches.php(12): Woo_Variation_Swatches_Pro->includes()
#2 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/includes/class-woo-variation-swatches-pro.php(13): Woo_Variation_Swatches->__construct()
#3 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/includes/class-woo-variation-swatches-pro.php(18): Woo_Variation_Swatches_Pro->__construct()
#4 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches-pro/woo-variation-swatches-pro.php(91): Woo_Variation_Swatches_Pro::instance()
#5 /nas/content/live/ezitag/wp-content/plugins/woo-variation-swatches/woo-variation-swatches.php(67): woo_variation_swatches_pro()
#6 /nas/content/live/ezitag/wp-includes/class-wp-hook.php(310): woo_variation_swatches(”)
#7 /nas/content/live/ezitag/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array)
#8 /nas/content/live/ezitag/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#9 /nas/content/live/ezitag/wp-settings.php(495): do_action(‘plugins_loaded’)
#10 /nas/content/live/ezitag/wp-config.php(120): require_once(‘/nas/content/li…’)
#11 /nas/content/live/ezitag/wp-load.php(50): require_once(‘/nas/content/li…’)
#12 /nas/content/live/ezitag/wp-admin/admin.php(34): require_once(‘/nas/content/li…’)
#13 /nas/content/live/ezitag/wp-admin/plugins.php(10): require_once(‘/nas/content/li…’)
#14 {main}
thrown