How to bring banners back to site?

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How to bring banners back to site?

Hello all,

Need someone with experience with ad-server software on Macs. Suddenly all of the banners on my web site have disappeared and they all say Expired in the software - OIO Publisher. Their support says perhaps something else was changed on our site - such as a plug-in, but I don't know of a thing and cannot reach my webmaster. How can I get the banners back before I lose all my advertisers?

Thank you

I did not find the right solution from the internet
References :

Sales Promotional Animation