It is very possible your chain data is corrupted and the coins are not showing in the wallet's front end - but that doesn't mean they are gone, so
let's take this step by step!#1 - According to the screenshot you posted, your wallet isn't synchronized yet. Please make sure to fully synchronize the wallet.
#2 - Please open the console by going to help, debug, console and type the following command:
listtransactions . If you could paste the result here, this will show us where the coins went, or if they are still in the wallet but just not visible in the front end.
Thank you,
Team NYG
i was having 290 transactions, i was early miner and few days ago i opened wallet to sync and it was ok
now look at this

[
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "f009afa27c82f95985eec54019abc83017b875ba1d84dad04a4c5fb45eb0dd8b",
"time" : 1522239114
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "e33a76e4ab317e3ea5e458c937e7e80d8c1d98bc9470fbd98de57edaab042f2d",
"time" : 1522239150
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "5cb77c4de0cb703f396fb2aa97e58d2c4088729c9b999b106024a2f74d8ac6fd",
"time" : 1522239254
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "ab7d530459526305fe5e75c1c1009618e8ab11204e4f5c9782cfe0d92a9f344c",
"time" : 1522239265
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "2abe5149cdd669159711d4e359f95357c52a103f6bdbe271cfce6a84ad7ff830",
"time" : 1522239356
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "d711a373f89c07aa742df6993b910afd18840d05a93cf421c1d157c6d890d26e",
"time" : 1522239947
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "0caeea6a979400db509fe64f4e300794ed704f9771dcadd3667b6f92ed39332a",
"time" : 1522240469
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "41ab7dec2e32b40516f5617924d5900286b7001936177b1e9c80b28812c0b920",
"time" : 1522241062
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "36564bac7f1a907d7c0f721228b1f727fe875bb031404db126ed82f6816b35bc",
"time" : 1522241435
},
{
"account" : "",
"category" : "orphan",
"amount" : 100000.00000000,
"confirmations" : 0,
"txid" : "ba03dfe6548d82fb0ca22c19617daf39ad24a0cea8a1e478bfdfc4423ac25bf5",
"time" : 1522248704
}
]