Unexpected Application Error!

t.entries is not a function or its return value is not iterable

TypeError: t.entries is not a function or its return value is not iterable
    at https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:90:19563
    at lB (https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:41:84075)
    at iH (https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:41:113120)
    at i (https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:41:107673)
    at x (https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:49:1377)
    at MessagePort.A (https://dmtgy0px4zdqn.cloudfront.net/6300082f0bc1bbd5d6cb3db1f7e7ed3ced79de3b.js?meteor_js_resource=true&_g_app_v_=327:49:1907)