Uncaught TypeError: Cannot read property 'isDisplayed' of undefined

[dison4linux]

Greetings,
I have a fresh install of 1.32.3 on Ubuntu Bionic from PPA
I have configured an RTSP camera and everything seems to be working correctly on the surface, but the Log is always red, and it is usually this message that I see:

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Uncaught TypeError: Cannot read property 'isDisplayed' of undefined

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http://10.0.71.34/zm/tools/mootools/mootools-more.js

Does anyone know what this has to do with?

[iconnor]

I recently fixed that in current master. Update to 1.33.14.

[racelife]

I recently fixed that in current master. Update to 1.33.14.

Is there an easy way to upgrade? Clicking on the version says it is the most current. Installed with "the easy way" script

[iconnor]

sudo add-apt-repository ppa:iconnor/zoneminder-master
sudo apt-get update
sudo apt-get install zoneminder