Error When Accessing Plugin

I’ve used your plugin for probably 100 websites. I’m creating a new one currently and did a fresh manual install of WordPress (latest) and installed the CFC plugin. When attempting to access the main CFC page to analyze or create a child theme I get this:

The page could not be loaded correctly. Why am I seeing this?
Query Menu: e(…).autocomplete is not a function
Selector Menu: e(…).autocomplete is not a function
Property Menu: e(…).autocomplete is not a function
New Property Menu: e(…).autocomplete is not a function
Deactivating or replacing plugins may resolve this issue.

I selected the Debug box and it reports this:

ChildThemeConfiguratorAdmin::load_config — config does not exist
ChildThemeConfiguratorUI::render — Enqueue set: FALSE
parent-child.php — handling: primary ignore: 0 enqueue: enqueue
ChildThemeConfiguratorAdmin::load_config — config does not exist
ChildThemeConfiguratorAdmin::ajax_query_css — ajax params: Array
(
[obj] => rules
[key] =>
)

ChildThemeConfiguratorAdmin::cache_debug — *** END OF REQUEST ***
ChildThemeConfiguratorAdmin::load_config — config does not exist
ChildThemeConfiguratorAdmin::ajax_query_css — ajax params: Array
(
[obj] => queries
[key] =>
)

ChildThemeConfiguratorAdmin::cache_debug — *** END OF REQUEST ***
ChildThemeConfiguratorAdmin::load_config — config does not exist
ChildThemeConfiguratorAdmin::ajax_query_css — ajax params: Array
(
[obj] => selectors
[key] => base
)

ChildThemeConfiguratorAdmin::cache_debug — *** END OF REQUEST ***

I’ve never had this issue before. I have removed every plugin except this one, deleted all themes except the main one, and this issue persists. Please advise, thank you.