WP Toolkit - Unable to parse received authentication token

Symptoms

When attempting to access the plugin interface "Home » Plugins » WP Toolkit" in WHM, the following error is returned.

Unable to parse received authentication token. Please contact your server administrator

Description 

This error is commonly caused by corrupted or missing data from the SQLite database used by WP Toolkit. This can be confirmed by checking the main logs located within /usr/local/cpanel/3rdparty/wp-toolkit/var/logs/ for an error like the following after generating the error referenced above.

Next Zend_Db_Statement_Exception: SQLSTATE[HY000]: General error: 11 database disk image is malformed in /usr/local/cpanel/3rdparty/wp-toolkit/lib/zf1/library/Zend/Db/Statement/Pdo.php:61

Workaround

After confirming that the interface error is caused by the error "11 database disk image is malformed", you will want to verify if the database is missing table data. The following can be used to confirm the current tables in the database. 

# /usr/local/cpanel/3rdparty/bin/sqlite3 /usr/local/cpanel/3rdparty/wp-toolkit/var/wp-toolkit.sqlite3 .tables
InstanceProperties        PluginVersions            SmartUpdateRunStatistics
Instances                 Plugins                   StatisticsMeasurements 
InstancesDomains          PluginsInstances          ThemeVersions           
JwtRefreshTokens          RemoteInstanceLogItems    Themes                  
JwtSignKeys               RemoteServers             ThemesInstances         
LongTaskParams            ScheduledTasks            UserSettings            
LongTaskUser              Sets                      Users                   
LongTasks                 SetsPlugins               settings                
PhinxMigrations           SetsThemes                version             

If there is no output or the database is corrupted, it will be required to reinstall Toolkit in order to recreate this database. To perform a reinstall, you will need to fully remove and reinstall the package as outlined below.

yum remove wp-toolkit-cpanel

yum install wp-toolkit-cpanel

Once these tasks complete, the interface will be expected to load normally. If you have continued issues, please contact cPanel support for assistance.