QWeb2: Template 'CustomButton' not found Error

[ajas91]

Hello,

When adding this to my the custom modules it does not work giving the below error.

QWeb2: Template 'CustomButton' not found Error: QWeb2: Template 'CustomButton' not found
at Object.exception (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3689:7)
    at Engine._render (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3734:103)
    at Engine.render (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3730:151)
    at Class.renderElement (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3949:1078)
    at Class.renderElement (http://localhost:8069/web/content/429-f7a092e/point_of_sale.assets.js:371:168)
    at Class.prototype.<computed> [as renderElement] (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3816:488)
    at http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:3949:917
    at http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:802:681
    at fire (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:796:299)
    at Object.add [as done] (http://localhost:8069/web/content/308-ac7004c/web.assets_common.js:797:467)
(anonymous) @ point_of_sale.assets.js:128

I'm not sure what is the issue here.