“ONE OR MORE FIELDS HAVE AN ERROR. PLEASE CHECK AND TRY AGAIN” error

I am getting “”ONE OR MORE FIELDS HAVE AN ERROR. PLEASE CHECK AND TRY AGAIN” error and don’t know why.

Here is my code:

<span class="name-span">Name</span>
[text* Name class:name]
<span class="email-span">Email</span>
[email* Email class:email]
<span class="phone-span">Phone (optional)</span>
[tel Phone class:phone]
<span class="date-span">Wedding Date</span>
[date WeddingDate class:wedding-date ]
[submit class:qbutton "Send"]

it highlights the tel phone field with the error. Not sure why. Also i do not have the date field as required as recommended in another similar thread.

Any ideas why i am getting the error?

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