there is always an error when using robot framework to locate the submit button, but the button is clearly there and does not use the frame framework, solve! The two create buttons in the picture, id name, etc., are exactly the same! I don"t know if it affects
error message:

WebDriverException: Message: unknown error: Element <button id="submit-button" class="btn btn-primary ng-binding" type="button" ng-disabled="form.$invalid || networkInvalidTag || !ipv6AddInvalidTag" ng-click="action.submit()">...</button> is not clickable at point (1222, 683). Other element would receive the click: <div tabindex="-1" role="dialog" class="modal fade ng-isolate-scope dnsListContent in" ng-class="{in: animate}" ng-style="{"z-index": 1050 + index*10, display: "block"}" ng-click="close($event)" modal-window="" window-class="dnsListContent" index="1" animate="animate" style="z-index: 1060; display: block;">...</div>
  (Session info: chrome=71.0.3578.98)
  (Driver info: chromedriver=72.0.3626.7 (efcef9a3ecda02b2132af215116a03852d08b9cb),platform=Windows NT 6.1.7601 SP1 x86_64)