Test in typoscript TMENU

I need to change the appearance of a menu following the presence or absence of content in tt_content. For that, I did this but it does not work, I have errors on the test:

      1 = TMENU
  1 {
    expAll = 1
    doNotLinkIt = 1                 

    IFSUB = 1
    IFSUB {
       doNotLinkIt = 1

    typeOfMenu = 0 
    #typeOfMenu.override = 1

    # pane content  
    contenu.cObject = COA
    contenu.cObject {                                                                       
          10 = CONTENT
          10 {
            table = tt_content
            select {
              orderBy = sorting
              pidInList.field = uid
              where = {#colPos}=99  and deleted = 0 and hidden = 0
            }
            if.isTrue.data {
                typeOfMenu = 1

            }
           # 20 = TEXT
           # 20 {
           #     field = bodytext
           #     typeOfMenu.value.override.if {
           #         isTrue.data = 20.field
           #     }
           # }
        }
    }
    [globalVar = LIT:1 = typeOfMenu]     
    #[globalVar = LIT:1 = {$typeOfMenu}]
        stdWrap {              
            typolink.parameter.field =  uid
            typolink.ATagParams = class="dropdown shrink" data-toggle="sous-menu{register:count_MENUOBJ}"
            typolink.ATagParams.insertData = 1
        }

    [else]
        stdWrap {              
            typolink.parameter.field =  uid
            typolink.ATagParams = class="vertical menu -- {register:typeOfMenu.value} --"
            typolink.ATagParams.insertData = 1
        }
    [end]            
        ...

• ERROR: Line 2244: Object Name String, "[globalVar" contains invalid character "[". Must be alphanumeric or one of: "_:-."

Does anyone have an idea? Best regards !