Please what does cache time mean

What dismantled means? They disassemble my item? Can someone tell me if this translation is correct?

ORIGINAL:

Origin : China - Cache time: 2018-04-09 17:09:57(GMT+2)
2018-04-09 04:56
上海处理中心, 已出口直封
2018-04-08 23:09
上海, 已出口开拆
2018-04-08 20:05
上海收寄中心, 已离开，下一站处理中心
2018-04-08 19:33
上海收寄中心, 已封发
2018-04-08 19:27
上海收寄中心, 已收寄


TRANSLATION:

Origin : China - Cache time: 2018-04-09 17:09:57(GMT+2)
2018-04-09 04:56
Shanghai Processing Center, exported straight Seal
2018-04-08 23:09
Shanghai, the export has been opened and dismantled
2018-04-08 20:05
Shanghai Receiving and forwarding center, has left, the next station processing center
2018-04-08 19:33
Shanghai Receiving and forwarding center, has been sealed
2018-04-08 19:27
Shanghai Receiving and forwarding center, received

Hi, this is the tracking result for my package. My parcel was sent back to the seller, or is coming to me? Thank you

RS059322915CN
Alert
China(China Post)
Moldova(Moldova Post)
Latest Event -- 2016-05-19 05:16 北京互换局, 已出口开拆
Destination Country - Cache Time: 2016-05-19 07:01

2016-05-05 20:14 China, 51810302, Receive item from customer (Otb)
Origin Country - Cache Time: 2016-05-19 07:01

2016-05-19 05:16 Exchange Bureau in Beijing, have been exported to open
2016-05-19 05:16 Exchange Bureau in Beijing, have been exported to open notes (security return)
2016-05-15 11:42 The Shenzhen Exchange Bureau, have been exported to each other (internal transit)
2016-05-15 11:42 The Shenzhen Exchange Bureau, returned
2016-05-15 11:40 The Shenzhen Exchange Bureau, have been exported to open
2016-05-06 14:51 The Shenzhen Exchange Bureau, have been exported to each other (internal transit)
2016-05-06 00:37 The Shenzhen Exchange Bureau, have been exported to open
2016-05-05 23:17 Small package Center, left, next stop "Center in Shenzhen"
2016-05-05 22:15 Parcel centre
2016-05-05 20:14 Small package Center, has received send