"This was an incredibly nasty incident and the staff were very shaken but fortunately unharmed, which is our number one priority.
"We will be offering them any assistance and any support they require after this terrible incident.
"We are also working with the police and hopefully witnesses will come forward to help catch these people."
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With no Premier League or Championship football, fans are being encouraged to get down to their local clubs to support Non-League Day.
A Police and Crime Commissioner is warning his force is on the brink of becoming "unviable" after years of underfunding.
Saturday will be cloudy with a few light showers. Sunny again on Sunday but with a cold wind.