[Defender] Defender: Fatal Error in content-scan.php

Have been getting a lot of these. Please fix.

[13-Nov-2018 02:46:13 UTC] PHP Fatal error: Uncaught Error: Cannot unset string offsets in /wp-content/plugins/wp-defender/app/module/scan/behavior/pro/content-scan.php:86

Stack trace:

#0 /wp-content/plugins/wp-defender/app/module/scan/behavior/pro/content-scan.php(47): WP_DefenderModuleScanBehaviorProContent_Scan->scanAFile('/home/spsitesl/…':wink:

#1 [internal function]: WP_DefenderModuleScanBehaviorProContent_Scan->processItemInternal(Array, '/home/spsitesl/…':wink:

#2 /wp-content/plugins/wp-defender/vendor/hammer/base/component.php(217): ReflectionMethod->invokeArgs(Object(WP_DefenderModuleScanBehaviorProContent_Scan), Array)

#3 /wp-content/plugins/wp-defender/vendor/hammer/queue/queue.php(184): HammerBaseComponent->__call('processItemInte…', Array)

#4 /wp-content/plugins/wp-defender/app/module/scan/component/scan-api.php(251): HammerQueueQueue->processItem()

#5 /wp-content/plugin in /wp-content/plugins/wp-defender/app/module/scan/behavior/pro/content-scan.php on line 86