How to resolve org.openqa.selenium.WebDriverException?

I am writing an automated test and want to report bugs, if occur, directly in the repo at GitHub. The step which fails in my program is the Submit new issue button from GitHub Issue Tracker.

Here is the code:

WebElement sendIssue = driver.findElement(By.xpath("/html/body/div[5]/div/div/div[2]/div[1]/div/form/div[2]/div[1]/div/div/div[3]/button"));

sendIssue.click();

And the exception:

org.openqa.selenium.WebDriverException: Element is not clickable at point (883, 547.7999877929688). Other element would receive the click: div class="modal-backdrop">

The following command also does not work:

((JavascriptExecutor) driver).executeScript("arguments[0].click();", sendIssue);

How can I make it clickable? Is there any other way by which I can resolve this issue?

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