[Bug] when try open Pane Title Color Settings in Accordion Block

[GentleGhostCoder]

Behavior:

• Error when click on "Pane Title Color Settings"
• Block is not editable anymore. Its only a box with the message: "In diesem Block ist ein Fehler aufgetreten und eine Vorschau ist nicht möglich."

Plugin-List:

Akismet Anti-Spam
Block Guide Lines
CoBlocks
Disable REST API
Gutenberg
Jetpack
Kadence Blocks – Gutenberg Blocks for Page Builder Features
Layout Grid
Lingotek Translation
Orbit Fox Companion
Polylang
Responsive Accordion And Collapse
Shortcodes Ultimate
Spectra
WPForms Lite
Hol dir WPForms Pro

Error-Log

TypeError: object null is not iterable (cannot read property Symbol(Symbol.iterator))
    at Function.from (<anonymous>)
    at l (https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:18424)
    at Object.__unstableMarkListeningStores (https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:18882)
    at https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:22457
    at p (https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:22355)
    at https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:22448
    at Me (https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:22797)
    at Ve (https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:23118)
    at https://iconsilium.info/wp-content/plugins/gutenberg/build/data/index.min.js?ver=97bc175f02c791eb52c8:1:23241
    at wt (https://iconsilium.info/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:47623)