That will restore access to the BB-Code Button Manager for the damaged entries.
Code:
$entry = reset($default[$type]);
if (!isset($entry['buttons']))
{
$default = json_decode('{"wikiButtons":{"moreText":{"buttons":["clearFormatting","bold","italic","fontSize","textColor","fontFamily","strikeThrough","underline","xfInlineCode","xfInlineSpoiler","xfCustom_blarg"],"buttonsVisible":"5","align":"left","icon":"fa-ellipsis-v"},"moreParagraph":{"buttons":["xfList","align","paragraphFormat"],"buttonsVisible":"6","align":"left","icon":"fa-ellipsis-v"},"moreRich":{"buttons":["insertLink","insertImage","xfSmilie","xfMedia","xfQuote","insertTable","insertHR","insertVideo","xfCustom_gallery","xfSpoiler","xfCode"],"buttonsVisible":"6","align":"left","icon":"fa-ellipsis-v"},"moreMisc":{"buttons":["undo","redo","xfBbCode","xfDraft"],"buttonsVisible":"4","align":"right","icon":""}},"wikiButtonsMD":{"moreText":{"buttons":["bold","italic","fontSize","textColor","fontFamily","strikeThrough","underline","xfInlineCode","xfInlineSpoiler","xfCustom_blarg"],"buttonsVisible":"3","align":"left","icon":"fa-ellipsis-v"},"moreParagraph":{"buttons":["xfList","align","|","paragraphFormat"],"buttonsVisible":"3","align":"left","icon":"fa-ellipsis-v"},"moreRich":{"buttons":["insertLink","insertImage","xfSmilie","insertVideo","xfMedia","xfCustom_gallery","xfQuote","insertTable","insertHR","xfSpoiler","xfCode"],"buttonsVisible":"2","align":"left","icon":"fa-ellipsis-v"},"moreMisc":{"buttons":["undo","redo","clearFormatting","xfBbCode","xfDraft"],"buttonsVisible":"1","align":"right","icon":""}},"wikiButtonsSM":{"moreText":{"buttons":["bold","italic","fontSize","textColor","fontFamily","strikeThrough","underline","xfInlineCode","xfInlineSpoiler"],"buttonsVisible":"2","align":"left","icon":"fa-ellipsis-v"},"moreParagraph":{"buttons":["xfList","align","paragraphFormat"],"buttonsVisible":"1","align":"left","icon":"fa-ellipsis-v"},"moreRich":{"buttons":["insertLink","insertImage","xfSmilie","xfQuote","insertVideo","xfMedia","xfCustom_gallery","insertTable","insertHR","xfSpoiler","xfCode"],"buttonsVisible":"3","align":"left","icon":"fa-ellipsis-v"},"moreMisc":{"buttons":["undo","redo","xfBbCode","clearFormatting","xfDraft"],"buttonsVisible":"1","align":"right","icon":""}},"wikiButtonsXS":{"moreText":{"buttons":["bold","italic","fontSize","textColor","fontFamily","xfList","align","paragraphFormat","strikeThrough","underline","xfInlineSpoiler","xfInlineCode"],"buttonsVisible":"2","align":"left","icon":"fa-ellipsis-v"},"moreParagraph":{"buttons":[],"buttonsVisible":"0","align":"left","icon":"fa-ellipsis-v"},"moreRich":{"buttons":["insertLink","insertImage","xfSmilie","xfQuote","insertVideo","xfMedia","xfCustom_gallery","insertTable","insertHR","xfSpoiler","xfCode"],"buttonsVisible":"2","align":"left","icon":"fa-ellipsis-v"},"moreMisc":{"buttons":["undo","redo","xfBbCode","clearFormatting","xfDraft"],"buttonsVisible":"1","align":"right","icon":""}}}', true);
}
Then reset the affected button configuration again. This should restore your toolbar.