Histogram
PixInsig The PJSR script Histogram has been discontinued, and its PixInsight update
repository is offline. Its successor is HistogramViewer, the same tool as a
native PixInsight module: faster, and it follows the active image. PixInsight reports an error for The installed script keeps working. To remove it as well, delete the folder
Histogram
If you added this repository in PixInsight
https://tricx.de/pi-scripts/Histogram/ when it checks
for updates. Remove the entry:
https://tricx.de/pi-scripts/Histogram/ and remove itsrc/scripts/Tricx/Histogram/ in the PixInsight installation directory and run
Script > Feature Scripts > Regenerate.