Magento – Magento 2 Content blocks and pages won’t load

Ground floor beginner here.
Fresh M2.2.3 install, the first thing I did was to change to production mode.

I did these steps:

1. opened app/etc/env.php
2. Set 'MAGE_MODE' to 'production'
3. Cleared all cache, cleared indexes, and cache the server.
4. Opened my Admin
5. Navigated to: content > block and pages > loading PROBLEM occurs here.

Neither "blocks" nor "pages" will load in the Admin, I just get the spinning vortex of loading.
BTW: "Widgets" seems to load fast, no waiting.

I am not familiar with the command line but I am comfortable finding and changing documents on the backend server.

Anyone know a fix?
Thank you so much!

-UPDATE: 5/28/18-

Here is an update to my problem.
error list:

Error list ,
Refused to execute script from '' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.709 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/editing/editor.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.713 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/search/search.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.715 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/columns/date.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.736 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/columns/multiselect.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.736 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/filters/range.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.737 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/form/element/ui-select.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.790 (index):1 Refused to execute script from 'https://dondelevagallery.com/pub/static/version1526747762/adminhtml/Magento/backend/en_US/Magento_Ui/js/grid/massactions.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
00:02:21.711 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/editing/editor" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.715 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/search/search" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.716 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/columns/date" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.716 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/columns/date" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.735 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "ui/grid/sticky/sticky" template requested by "cms_block_listing.cms_block_listing.listing_top".
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.736 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/columns/multiselect" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.736 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/filters/range" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.737 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/form/element/ui-select" component.
ConsoleOutputHandler.show @ console-output-handler.js:34
00:02:21.790 console-output-handler.js:34 [2018-05-28 12:02:21] [ERROR] Failed to load the "Magento_Ui/js/grid/massactions" component.
ConsoleOutputHandler.show @ console-output-handler.js:34


I asked my ISP said they tried to fix it but that I should contact a Magento expert, so I came back here.

hopefully I am not too frustrating and helpless but I appreciate all your advice. Maybe there is a link you can send me me too or advise what I should learn first, like using PuTTY or CLI… Thank you so much for your help all.