Erros messages

Hi,

I am receiving the following error messages from you plugin. Could you help meplease?

query-monitor.js?ver=1588846221:324 {type: “notice”, message: “Undefined index: acf-frontend-form-element/freemius”, file: “wp-content/plugins/add-search-to-menu/includes/freemius/start.php”, line: 184, stack: Array(4), …}
(anonymous) @ query-monitor.js?ver=1588846221:324
dispatch @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
r.handle @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
trigger @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
a.event.trigger @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:8
x @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
c @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
XMLHttpRequest.send (async)
send @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
ajax @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
(anonymous) @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:352
a.Deferred @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:8
send @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:352
p.updates.ajax @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
p.updates.updatePlugin @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
(anonymous) @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
dispatch @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
r.handle @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
query-monitor.js?ver=1588846221:324 {type: “notice”, message: “Trying to get property ‘plugin_path’ of non-object”, file: “wp-content/plugins/add-search-to-menu/includes/freemius/start.php”, line: 189, stack: Array(4), …}
(anonymous) @ query-monitor.js?ver=1588846221:324
dispatch @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
r.handle @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
trigger @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
a.event.trigger @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:8
x @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
c @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
XMLHttpRequest.send (async)
send @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
ajax @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:4
(anonymous) @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:352
a.Deferred @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:8
send @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:352
p.updates.ajax @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
p.updates.updatePlugin @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
(anonymous) @ load-scripts.php?c=0&load[chunk_0]=thickbox,hoverIntent,common,hoverintent-js,admin-bar,underscore,wp-util,wp-dom-ready,wp-a11y,wp-sanitize,updates,plugin-install,&load[chunk_1]=svg-painter,wp-hooks,heartbeat,wp-auth-check,backbone,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,jquery-ui-progres&load[chunk_2]=sbar&ver=5.4.1:360
dispatch @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
r.handle @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.4.1:3
query-monitor.js?ver=1588846221:324 {type: “notice”, message: “Undefined index: acf-frontend-form-element/freemius”, file: “wp-content/plugins/add-search-to-menu/includes/freemius/start.php”, line: 277, stack: Array(4), …}