MarkupQA - Call to a member function isSuperuser() on null

[tbba]

Error:
Uncaught Error: Call to a member function isSuperuser() on null in /kunden//wire/core/MarkupQA.php:76
Stack trace:
/kunden//wire/modules/Fieldtype/FieldtypeTextarea.module(158): ProcessWire\MarkupQA->__construct(Object(ProcessWire\Page), Object(ProcessWire\Field))
/kunden//wire/modules/Fieldtype/FieldtypeTextarea.module(238): ProcessWire\FieldtypeTextarea->markupQA(Object(ProcessWire\Page), Object(ProcessWire\Field))
/kunden//wire/modules/Fieldtype/FieldtypeTextarea.module(221): ProcessWire\FieldtypeTextarea->_htmlReplacement(Object(ProcessWire\Page), Object(ProcessWire\Field), '< h3 >Mit einem B...', false)
/kunden//wire/modules/Fieldtype/FieldtypeTextarea.module(134): ProcessWire\FieldtypeTextarea->htmlReplacements(Object(Proce (line 76 of /kunden//wire/core/MarkupQA.php)

Error occured when setting autojoin for the a textarea field.
But: Only one field body is the problem, a field body2 (same settings) not.
Looks like a rare bug.

Was true
$config->debugMarkupQA = true;
after switching that off, still I get mails occasionally with that error note error messages stopped.
(edited)

This is an old webpage... I now I could clean up modules some time...
MODULES:
Class Version Title
AdminThemeDefault 14 Default
AdminThemeReno 17 Reno
FieldtypeText 100 Text
FieldtypeURL 101 URL
FieldtypeFile 104 Dateien
FieldtypeInteger 101 Integer
FieldtypeDatetime 104 Datetime
FieldtypePassword 101 Password
FieldtypeFieldsetOpen 100 Fieldset (Open)
FieldtypePageTable 8 ProFields: Page Table
FieldtypePage 104 Page Reference
FieldtypeImage 101 Images
FieldtypeModule 101 Module Reference
FieldtypeRepeater 106 Repeater
FieldtypeFieldsetClose 100 Fieldset (Close)
FieldtypePageTitle 100 Page Title
FieldtypeCheckbox 101 Checkbox
FieldtypeTextarea 106 Textarea
FieldtypeEmail 100 E-Mail
MarkupPageArray 100 PageArray Markup
MarkupCache 101 Markup Cache
PageRender 105 Seiten-Rendering
InputfieldSelector 27 Selector
ProcessPageSearch 106 Page Search
ProcessPageClone 103 Seite klonen
LanguageSupport 103 Languages Support
LanguageSupportFields 100 Languages Support - Fields
LanguageSupportPageNames 9 Languages Support - Page Names
PagePermissions 105 Page Permissions
SystemUpdater 16 System-Updater
FieldtypeNotifications 4 Notifications
SystemNotifications 12 System Notifications
JqueryUI 196 jQuery UI
JqueryCore 183 jQuery Core
JqueryTableSorter 221 jQuery Table Sorter Plugin
SessionHandlerDB 5 Session Handler Database
LazyCron 102 Lazy Cron
FieldtypeTextUnique 100 Text Unique
ProcessChangelogHooks 1.1.10 Changelog Hooks
CronjobDatabaseBackup 115 Cronjob Database Backup
ProcessWireUpgradeCheck 7 Upgrades Checker
ProcessLoginHistoryHooks 1.2.1 Login History Hooks
PasswordForceChange 18 Force Password Change
FieldtypeConcat 106 Concat
LoginNotifier 102 Login Notifier
SchedulePages 122 Schedule Pages
MarkupCookieConsent 32 Markup Cookie Consent
BatchChildEditor 1.6.6 Batch child editor
ProcessPageCloneAdaptUrls 0.0.4 Adapt URLs after Cloning
TracyDebugger 4.3.5 Tracy Debugger
MaintenanceMode 107 Maintenance Mode
VersionControl 1.2.9 Version Control
PageSnapshot 1.1.20 Page Snapshot
FieldtypeTable 17 ProFields: Table
FormBuilder 31 Form Builder
SessionLoginAlarm 120 Session Login Alarm
ProfilerPro 1 Profiler Pro (Main)
FieldtypePageTableExtended 233 PageTable extended
PageEditSoftLock 101 Page Edit Soft Lock
ProcessPageEditSoftLock 101 Process Page Edit Soft Lock
PageListPin 100 Page List Pin
ProCache 316 ProCache
AdminOnSteroids 148 AdminOnSteroids
PrevNextTabs 5 Prev/Next Tabs
FormSaveReminder 106 Form Save Reminder
PageTreeAddNewChildsReverse 102 Pagetree Add New Childs Reverse
ProcessPageEditFoldStatus 0.1 Process Page Edit Fold Status
PageEditFoldStatus 010 Page Edit Fold Status
ModuleSettingsImportExport 0.2.4 Module Settings Import Export
HannaCodeHelper 50 Hanna Code Helper

Addition: The textarea mentioned in the error stack had nothing fancy. Just text, no links:
< h3 >Mit einem B

[ryancramerdesign]

I wasn't able to duplicate this one, but the error seemed to indicate that there was no "user" API variable present. Was PW being bootstrapped from something else, or using command line mode? I went ahead and added a check for the $user API variable in the location mentioned in the exception, even though I can't duplicate the issue. Please let me know if you continue to experience issues. Thanks.

[tbba]

Hm. The user api variable is present, the frontend shows some extra things in that case.
No idea what has confused it in this case but your fix worked - The critical error is gone - Thank you!