I have multiple Apps scripts running on google classic web sites. As of today 11/5/18 when I try to access the code I get a "No scripts found" message. If I create & save a new script I can write the code, but if I leave & return the script is no longer there. This is already causing me serious problems.
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
回答1:
Try locating your scripts on the Apps Script home page.
https://script.google.com/home
Here you will find all the scripts that you have created from your account irrespective of their location.
Hope it helps.
回答2:
Here is the link to the corresponding issue on the official Issue Tracker:
Unable to view or modify Apps Scripts associated with Google Sites Classic; new scripts not properly associated with site
The workaround to access the script is to look for the script on https://script.google.com as was mentioned on the previous answer
