openstreetmap L is not defined.

Hey there, I am struggling with the openstreetmap plugin, in the console it shows the following error :

Uncaught ReferenceError: L is not defined
    at data:text/javascript;base64,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:1:55
(anonymous) @ data:text/javascript;base64,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:1

I don’t know too much PHP but I get what’s at it.

var lat = 47.59408576028764;
var lon = -1.6818853254653146;
map = L.map('sp_openstreetmaps_container', {
    zoomControl: !1
}).setView([lat, lon], 15);
L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
    attribution: 'Map data &copy; <a >OpenStreetMap</a> contributors',
    maxZoom: 18,
}).addTo(map);
marker = L.marker([lat, lon]).addTo(map);
map.dragging.disable();
map.touchZoom.disable();
map.doubleClickZoom.disable();
map.scrollWheelZoom.disable()

I believe L contains a map object, but L refers to nothing or doesn’t look initiated (like L new(Map); )when I load the sports-event page.

it doesn’t affect the whole website as in when I put my grounds they’re working on the admin panel. It is only when I put the grounds on the matches. I don’t know if any update broke it and I don’t know how to fix.

Any help is appreciated. Thank you in advance.

The page I need help with: [log in to see the link]