possible php error

My WP and Woocommerce installation has told me to update my php version.

I have installed PHP Compatibility Checker to see if I get any problems.

PHP Compatibility Checker gives me this warning related to your plugin:

Name: WooCommerce Admin Bar Addition

FILE: /wp-content/plugins/woocommerce-admin-bar-addition/includes/wcaba-wcbranding.php
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FOUND 0 ERRORS AND 14 WARNINGS AFFECTING 14 LINES
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41 | WARNING | Function name “__wcaba_admin_only” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
53 | WARNING | Function name “__wcaba_role_shop_manager” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
65 | WARNING | Function name “__wcaba_role_editor” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
77 | WARNING | Function name “__wcaba_cap_manage_options” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
89 | WARNING | Function name “__wcaba_cap_install_plugins” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
109 | WARNING | Function name “__wcaba_blue_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
121 | WARNING | Function name “__wcaba_green_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
133 | WARNING | Function name “__wcaba_grey_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
145 | WARNING | Function name “__wcaba_orange_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
157 | WARNING | Function name “__wcaba_pink_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
169 | WARNING | Function name “__wcaba_red_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
181 | WARNING | Function name “__wcaba_teal_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
193 | WARNING | Function name “__wcaba_theme_images_icon” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
213 | WARNING | Function name “__wcaba_no_icon_display” is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
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