Can’t add marker

Hello,

I can’t add marker. I have this erros in console :

wpgmaps-admin-core.js?ver=8.0.20b:429 Uncaught TypeError: Cannot set property 'map' of undefined
    at Object.success (wpgmaps-admin-core.js?ver=8.0.20b:429)
    at i (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:2)
    at Object.fireWith [as resolveWith] (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:2)
    at x (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:4)
    at XMLHttpRequest.c (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:4)