admin console error on setting page

Showing JS error in console on setting page.

Uncaught (in promise) TypeError: Cannot read property 'locationBeforeTransitions' of undefined
    at h (optimizer.bundle.js?ver=5.6.7:304)
    at m (optimizer.bundle.js?ver=5.6.7:304)
    at m (optimizer.bundle.js?ver=5.6.7:280)
    at Object.dispatch (optimizer.bundle.js?ver=5.6.7:321)
    at Object.d [as rehydrate] (optimizer.bundle.js?ver=5.6.7:321)
    at _ (optimizer.bundle.js?ver=5.6.7:16)
    at optimizer.bundle.js?ver=5.6.7:16
h @ optimizer.bundle.js?ver=5.6.7:304
m @ optimizer.bundle.js?ver=5.6.7:304
m @ optimizer.bundle.js?ver=5.6.7:280
(anonymous) @ optimizer.bundle.js?ver=5.6.7:321
d @ optimizer.bundle.js?ver=5.6.7:321
_ @ optimizer.bundle.js?ver=5.6.7:16
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
Promise.then (async)
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
Promise.then (async)
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
m @ optimizer.bundle.js?ver=5.6.7:280
(anonymous) @ optimizer.bundle.js?ver=5.6.7:321
persist @ optimizer.bundle.js?ver=5.6.7:321
t.default @ optimizer.bundle.js?ver=5.6.7:321
(anonymous) @ optimizer.bundle.js?ver=5.6.7:321
(anonymous) @ optimizer.bundle.js?ver=5.6.7:321
n @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
n @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
n @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:1
optimizer.bundle.js?ver=5.6.7:11 GET siteurlm/wp-json/siteground-optimizer/v1/fetch-options 500
(anonymous) @ optimizer.bundle.js?ver=5.6.7:11
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
j @ optimizer.bundle.js?ver=5.6.7:16
E @ optimizer.bundle.js?ver=5.6.7:16
e @ optimizer.bundle.js?ver=5.6.7:16
W @ optimizer.bundle.js?ver=5.6.7:16
j @ optimizer.bundle.js?ver=5.6.7:16
E @ optimizer.bundle.js?ver=5.6.7:16
_ @ optimizer.bundle.js?ver=5.6.7:16
i @ optimizer.bundle.js?ver=5.6.7:16
put @ optimizer.bundle.js?ver=5.6.7:16
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
i @ optimizer.bundle.js?ver=5.6.7:280
l @ optimizer.bundle.js?ver=5.6.7:280
t.asap @ optimizer.bundle.js?ver=5.6.7:280
(anonymous) @ optimizer.bundle.js?ver=5.6.7:16
emit @ optimizer.bundle.js?ver=5.6.7:16
(anonymous) @ optimizer.bundle.js?ver=5.6.7:321
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
n @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:280
n @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:1
(anonymous) @ optimizer.bundle.js?ver=5.6.7:1
optimizer.bundle.js?ver=5.6.7:11 Response?{type: "basic", url: "siteurl/wp-json/siteground-optimizer/v1/fetch-options", redirected: false, status: 500, ok: false,?…}
optimizer.bundle.js?ver=5.6.7:321 TypeError: Cannot read property 'data' of undefined TypeError: Cannot read property 'data' of undefined
    at optimizer.bundle.js?ver=5.6.7:321
    at optimizer.bundle.js?ver=5.6.7:321
    at Object.next (optimizer.bundle.js?ver=5.6.7:321)
    at E (optimizer.bundle.js?ver=5.6.7:16)
    at _ (optimizer.bundle.js?ver=5.6.7:16)

any thoughts ?
Thanks