I got something similar today when I installed and upgraded. Any answers on this?

Error Details
=============
An error of type E_ERROR was caused in line 93 of the file /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/Payload/Request.php. Error message: Uncaught TypeError: Argument 1 passed to Rollbar\Payload\Request::setPost() must be of the type array or null, string given, called in /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/DataBuilder.php on line 614 and defined in /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/Payload/Request.php:93
Stack trace:
#0 /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/DataBuilder.php(614): Rollbar\Payload\Request->setPost(”)
#1 /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/DataBuilder.php(380): Rollbar\DataBuilder->getRequest()
#2 /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/Config.php(728): Rollbar\DataBuilder->makeData(‘error’, Object(TypeError), Array)
#3 /nas/content/live/fwc/wp-content/plugins/seo-by-rank-math/vendor/rollbar/rollbar/src/RollbarLogger.php(190): Rollbar\Config->getRollbarData(‘error’, Object(TypeError), Array)