Compatibility issue with official amp plugin

When moving from amp to non-amp there are white lines between the loading of the pages. Please suggest the solution

Here are the plugin reports reposts:

[
    {
        "url": "https://ncert.infrexa.com/bank-of-india-recruitment-2022/",
        "type": "is_singular[post]",
        "label": "Post",
        "amp_url": "https://ncert.infrexa.com/bank-of-india-recruitment-2022/?amp=1",
        "validation_errors": [
            {
                "node_name": "font",
                "parent_name": "a",
                "code": "DISALLOWED_TAG",
                "type": "html_element_error",
                "node_attributes": {
                    "color": "#ff0000"
                },
                "node_type": 1,
                "sources": [
                    {
                        "type": "plugin",
                        "name": "amp-sidebar-hamburger-menu",
                        "file": "amp-wp-sidebar.php",
                        "line": 241,
                        "function": "jozz_ampsidebar_add_head_html",
                        "hook": "amp_post_template_footer",
                        "priority": 99
                    }
                ]
            }
        ],
        "validated_url_post": {
            "id": 25762,
            "edit_link": "https://ncert.infrexa.com/wp-admin/post.php?post=25762&action=edit"
        },
        "stale": false
    },
    {
        "url": "https://ncert.infrexa.com/editorial-team/",
        "type": "is_singular[page]",
        "label": "Page",
        "amp_url": "https://ncert.infrexa.com/editorial-team/?amp=1",
        "validation_errors": [
            {
                "node_name": "font",
                "parent_name": "a",
                "code": "DISALLOWED_TAG",
                "type": "html_element_error",
                "node_attributes": {
                    "color": "#ff0000"
                },
                "node_type": 1,
                "sources": [
                    {
                        "type": "plugin",
                        "name": "amp-sidebar-hamburger-menu",
                        "file": "amp-wp-sidebar.php",
                        "line": 241,
                        "function": "jozz_ampsidebar_add_head_html",
                        "hook": "amp_post_template_footer",
                        "priority": 99
                    }
                ]
            }
        ],
        "validated_url_post": {
            "id": 25140,
            "edit_link": "https://ncert.infrexa.com/wp-admin/post.php?post=25140&action=edit"
        },
        "stale": false
    }
]

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