diff --git a/app/src/DnaStore.cpp b/app/src/DnaStore.cpp
index 1959676..102a90f 100644
--- a/app/src/DnaStore.cpp
+++ b/app/src/DnaStore.cpp
@@ -14,12 +14,12 @@ void DnaStore::load(DnaManagerData *data)
 {
   if (sys::fileExists(ID_FILE_NAME))
   {
-    sys::loadDataFromFile(ID_FILE_NAME, &data->id, sizeof(uint64_t));
+    sys::loadDataFromFile(ID_FILE_NAME, &data->id, sizeof(int64_t));
   }
   else
   {
     data->id = time(nullptr);
-    sys::saveDataToFile(ID_FILE_NAME, &data->id, sizeof(uint64_t));
+    sys::saveDataToFile(ID_FILE_NAME, &data->id, sizeof(int64_t));
   }
 
   if (sys::fileExists(DATA_FILE_NAME))
diff --git a/server/src/server.cpp b/server/src/server.cpp
index b7ab261..5f9f87d 100644
--- a/server/src/server.cpp
+++ b/server/src/server.cpp
@@ -18,7 +18,7 @@ void call(int sock, sockaddr_in newSocketInfo)
 {
   std::cout << "new User" << std::endl;
 
-  uint64_t conf, id;
+  int64_t conf, id;
   Message message;
 
   TcpSocket::recvt(sock, &conf, sizeof(conf));
diff --git a/shared/inc/NetConst.hpp b/shared/inc/NetConst.hpp
index a0e0807..bd43a23 100644
--- a/shared/inc/NetConst.hpp
+++ b/shared/inc/NetConst.hpp
@@ -1,6 +1,6 @@
 #include <cinttypes>
 
-constexpr uint64_t StartHeader = 1737720524UL;
+constexpr int64_t StartHeader = 1737720524UL;
 
 enum Mess
 {
diff --git a/shared/inc/values/DnaManager.hpp b/shared/inc/values/DnaManager.hpp
index 1f432d9..5676c29 100644
--- a/shared/inc/values/DnaManager.hpp
+++ b/shared/inc/values/DnaManager.hpp
@@ -32,7 +32,7 @@ struct DnaManagerData
 {
   int generation;
   uint128 randSeed;
-  uint64_t id;
+  int64_t id;
   int queued;
   int showed;
   std::vector<Dna> vector;
diff --git a/shared/inc/values/mrand.hpp b/shared/inc/values/mrand.hpp
index 04b4cbc..a7c8b8d 100644
--- a/shared/inc/values/mrand.hpp
+++ b/shared/inc/values/mrand.hpp
@@ -10,7 +10,7 @@ struct uint128
 
 namespace mrand
 {
-  uint128 getState(unsigned long long seed);
+  uint128 getState(unsigned long seed);
   float getFloat(uint128 *state);
   int getValue(int min, int max, uint128 *state);
   unsigned int computeCRC32(void *data, int dataSize);
diff --git a/shared/src/values/mrand.cpp b/shared/src/values/mrand.cpp
index 1bacff2..4c57348 100644
--- a/shared/src/values/mrand.cpp
+++ b/shared/src/values/mrand.cpp
@@ -34,10 +34,8 @@ uint64_t rprand_splitmix64(uint64_t &rprand_seed)
 
 namespace mrand
 {
-  uint128 getState(unsigned long long seed)
+  uint128 getState(unsigned long rprand_seed)
   {
-    uint64_t rprand_seed = (uint64_t)seed; // Set SplitMix64 seed for further use
-
     uint128 rprand_state;
 
     // To generate the Xoshiro128** state, we use SplitMix64 generator first