API notification for item sold received every 5 minutes

Starting from saturday my application receive a notification every 5 minutes for items sold, of course, once.
I checked the apache log and there is no error logged, that means that the programs ends correctly.
I did not made any change to the application and everything worked fine till saturday.

The seller account is Collectoravenue

Thank for your help

De informatie is niet meer beschikbaar omdat de rekening van deze gebruiker is verwijderd (AVG)

Thank you for the fast response.
I'll made some log and I'll post them very soon.

HI,
here are the last 2 noticiation received from Delacampe API
The first line is the time of the reception, the other lines are the dump of the xml content.

1st Notification
Delcampe notification : 18-09-2017 11:07:10 ----------------------------------------
SimpleXMLElement Object
(
[Notification_Token] => tca-cdm84
[Notification_Datetime] => 2017-09-16T16:24:52+00:00
[Notification_Type] => Seller_Item_Close_Sold
[Notification_Data] => SimpleXMLElement Object
(
[id_item] => 409351021
[seller_nickname] => collectoravenue
[item_title] => Cartolina - Illustrata Terzi - Roma - Societ? Amatori di Belle Arti - 78? Espos
[best_bid] => 46.04
[best_bid_currency] => EUR
[qty] => 1
[available_quantity] => 0
[personal_reference] => 1957
[url_to_item] => https%3A%2F%2Fwww.delcampe.net%2Fit%2Fcollezionismo%2Fitem%2F409351021.html%3Futm_source%3Dnewsletter%26utm_medium%3Demail%26utm_campaign%3Dsold_item.xml.twig
[bids_qty] => 1
[visits_counter] => SimpleXMLElement Object
(
)

[buyer_id] => 198766
[buyer_nickname] => jimi99
[buyer_email] => gmax@vtxnet.ch
[buyer_spoken_languages] => Inglese (Regno Unito), Francese
[buyer_language] => Francese
[buyer_firstname] => Gael
[buyer_surname] => Ménès
[buyer_address] => rue du Jura 38
[buyer_zipcode] => 1373
[buyer_city] => Chavornay
[buyer_state] => SimpleXMLElement Object
(
)

[buyer_country] => CH
[buyer_phone] => SimpleXMLElement Object
(
)

[buyer_rating_nbr] => 5259
[buyer_rating_percentage] => 99.96
[url_to_rating] => https%3A%2F%2Fwww.delcampe.net%2Fit%2Fcollezionismo%2Fitem%2F409351021.html%3Futm_source%3Dnewsletter%26utm_medium%3Demail%26utm_campaign%3Dsold_item.xml.twig%23tab-rates
)

)

2nd notification
Delcampe notification : 18-09-2017 11:12:10 ----------------------------------------
SimpleXMLElement Object
(
[Notification_Token] => tca-cdm84
[Notification_Datetime] => 2017-09-16T16:24:52+00:00
[Notification_Type] => Seller_Item_Close_Sold
[Notification_Data] => SimpleXMLElement Object
(
[id_item] => 409351021
[seller_nickname] => collectoravenue
[item_title] => Cartolina - Illustrata Terzi - Roma - Societ? Amatori di Belle Arti - 78? Espos
[best_bid] => 46.04
[best_bid_currency] => EUR
[qty] => 1
[available_quantity] => 0
[personal_reference] => 1957
[url_to_item] => https%3A%2F%2Fwww.delcampe.net%2Fit%2Fcollezionismo%2Fitem%2F409351021.html%3Futm_source%3Dnewsletter%26utm_medium%3Demail%26utm_campaign%3Dsold_item.xml.twig
[bids_qty] => 1
[visits_counter] => SimpleXMLElement Object
(
)

[buyer_id] => 198766
[buyer_nickname] => jimi99
[buyer_email] => gmax@vtxnet.ch
[buyer_spoken_languages] => Inglese (Regno Unito), Francese
[buyer_language] => Francese
[buyer_firstname] => Gael
[buyer_surname] => Ménès
[buyer_address] => rue du Jura 38
[buyer_zipcode] => 1373
[buyer_city] => Chavornay
[buyer_state] => SimpleXMLElement Object
(
)

[buyer_country] => CH
[buyer_phone] => SimpleXMLElement Object
(
)

[buyer_rating_nbr] => 5259
[buyer_rating_percentage] => 99.96
[url_to_rating] => https%3A%2F%2Fwww.delcampe.net%2Fit%2Fcollezionismo%2Fitem%2F409351021.html%3Futm_source%3Dnewsletter%26utm_medium%3Demail%26utm_campaign%3Dsold_item.xml.twig%23tab-rates
)

)

As you can see are exactly the same

Hi,
the application is still receiving a notification every 5 minutes !!!!!!!

Someone did something but the issue is still there!
Now the notification a sent every 15 minutes.
At this pace the problem will be solved in 2117.

De informatie is niet meer beschikbaar omdat de rekening van deze gebruiker is verwijderd (AVG)