Error: Call to undefined function _token_module()

Sometimes we get this error on the landing page. Any ideas what could cause it. Module weights?

Error: Call to undefined function _token_module() in field_tokens() (line 1593 of /app/web/modules/contrib/token/token.tokens.inc)#0 [internal function]: field_tokens('entity', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#1 /app/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(403): call_user_func_array('field_tokens', Array)
#2 /app/web/core/lib/Drupal/Core/Utility/Token.php(304): Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array)
#3 /app/web/modules/contrib/token/token.tokens.inc(937): Drupal\Core\Utility\Token->generate('entity', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#4 [internal function]: token_tokens('user', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#5 /app/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(403): call_user_func_array('token_tokens', Array)
#6 /app/web/core/lib/Drupal/Core/Utility/Token.php(304): Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array)
#7 /app/web/modules/contrib/filelog/filelog.tokens.inc(135): Drupal\Core\Utility\Token->generate('user', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#8 [internal function]: filelog_tokens('log', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#9 /app/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(403): call_user_func_array('filelog_tokens', Array)
#10 /app/web/core/lib/Drupal/Core/Utility/Token.php(304): Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array)
#11 /app/web/core/lib/Drupal/Core/Utility/Token.php(196): Drupal\Core\Utility\Token->generate('log', Array, Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#12 /app/web/modules/contrib/filelog/src/Logger/FileLog.php(223): Drupal\Core\Utility\Token->replace('{"time":"[log:c...', Array, Array, Object(Drupal\Core\Render\BubbleableMetadata))
#13 /app/web/modules/contrib/filelog/src/Logger/FileLog.php(157): Drupal\filelog\Logger\FileLog->render(7, '/app/web/module...', Array)
#14 /app/web/core/lib/Drupal/Core/Logger/LoggerChannel.php(127): Drupal\filelog\Logger\FileLog->log(7, '/app/web/module...', Array)
#15 /app/vendor/psr/log/Psr/Log/LoggerTrait.php(127): Drupal\Core\Logger\LoggerChannel->log(7, '/app/web/module...', Array)
#16 /app/web/modules/contrib/tekla_login/src/StackMiddleware/AtcAutologin.php(139): Drupal\Core\Logger\LoggerChannel->debug('/app/web/module...')
#17 /app/web/modules/contrib/tekla_login/src/StackMiddleware/AtcAutologin.php(69): Drupal\tekla_login\StackMiddleware\AtcAutologin->handle2(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /app/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\tekla_login\StackMiddleware\AtcAutologin->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /app/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /app/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#21 /app/web/core/lib/Drupal/Core/DrupalKernel.php(708): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#22 /app/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#23 {main}