Error at sorting menu items

For a sake of completeness I would also add constant and value COM_ACCORDEONMENUCK="Accordeon menu CK" in language ini files en-GB.com_accordeonmenuck.sys.ini and fr-FR.com_accordeonmenuck.sys.ini

why ? where do you see a problem with this string ?

In Global Configuration under Components is just com_accordeonmenuck instead of let say Accodreon Menu CK.

thank you, it will be fixed in the next version