Steemit triple post but can't delete it

I posted my first blog, but when i did I get :

In the console log I get:

Failed to load resource: the server responded with a status of 502 ()
submit.html:1 Failed to load https://api.steemit.com/: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://steemit.com' is therefore not allowed access. The response had HTTP status code 502.
app.5dbfe072a11a5e690195.js:1 TypeError: Network request failed
at XMLHttpRequest.a.onerror (https://steemit.com/assets/vendor.5dbfe072a11a5e690195.js:1:688915)
From previous event:
at o.d [as _captureStackTrace] (https://steemit.com/assets/vendor.5dbfe072a11a5e690195.js:1:207565)
at o._then (https://steemit.com/assets/vendor.5dbfe072a11a5e690195.js:1:238946)
at o.spread (https://steemit.com/assets/vendor.5dbfe072a11a5e690195.js:1:237539)
at Object.x.send (https://steemit.com/assets/vendor.5dbfe072a11a5e690195.js:1:699109)
at https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:2074092

at new t (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:35603)
at https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:2073586
at r (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:620287)
at Generator._invoke (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:621332)
at Generator.e.(anonymous function) [as next] (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:620466)
at n (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:325503)
at n (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:325848)
at https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:326695

at new t (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:35603)
at https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:2073586
at r (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:620287)
at Generator._invoke (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:621332)
at Generator.e.(anonymous function) [as next] (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:620466)
at n (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:325503)
at n (https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:325848)
at https://steemit.com/assets/app.5dbfe072a11a5e690195.js:1:326695

I did post a dozen times and 3 of them were posted, but still get the error messages.
I saw that these threads are already known for more then a month and still not solved yet. You cant delete any posts, so i guess many doubled posts for nothing.

see here: https://steemit.com/steemit/@bix/how-i-posted-the-same-post-3-times-in-a-row-transaction-broadcast-error-typeerror-network-request-failed

Hope this problem will be fixed soon