Google Tag Manager Issue

Hi Team,

When I put my Google Tag manger code to E-Commerce Setup > Order Forms >HTML areas >Custom Header, it raising issue script tag must not be included in a div tag.

I checked this issue in Google Tag Assistant.

Screenshot_3

Please help me in this issue, I am working on cross domain tracking with Google tag manager and I am stuck here.

is that mean infusion soft is still not comptable with Google tag manager?