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IDProjectCategoryView StatusLast Update
0004031Composrcore_abstract_interfacespublic2020-01-10 22:52
ReporterChris GrahamAssigned ToChris Graham 
Status resolvedResolutionfixed 
Product Version10.0.29 
Fixed in Version10.0.30 
Summary0004031: PHP 7.4 error on some do-next screens ("Trying to access array offset on value of type null")
DescriptionSome do-next screens may show a "Trying to access array offset on value of type null" error. This happens if the screen supports a link which is not available due to not all addons being installed.

PHP 7.4 is much stricter in certain regards than older PHP versions.
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2020-01-10 22:52

administrator   ~0006274

Fixed in git commit 737ea059a ( - link will become active once code pushed to GitLab)

A hotfix (a TAR of files to upload) have been uploaded to this issue. These files are made to the latest intra-version state (i.e. may roll in earlier fixes too if made to the same files) - so only upload files newer than what you have already. Always take backups of files you are replacing or keep a copy of the manual installer for your version, and only apply fixes you need. These hotfixes are not necessarily reliable or well supported. Not sure how to extract TAR files to your Windows computer? Try 7-zip (

hotfix-4031, 2020-01-10 10pm.tar (19,456 bytes)

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