i fixed your code bro :/

kernel/src/Bitmap.cpp

@@ -8,7 +8,7 @@ bool Bitmap::operator[](uint64_t index){
         return true;
     }
     return false;
-};
+}
 
 
 void Bitmap::Set(uint64_t index, bool value){

kernel/src/PageFrameAllocator.cpp

@@ -13,32 +13,32 @@ void PageFrameAllocator::ReadEFIMemoryMap(EFI_MEMORY_DESCRIPTOR* mMap, size_t mM
     uint64_t mMapEntries = mMapSize / mMapDescSize;
 
     void* largestFreeMemSeg = NULL;
-    size_t largestFreeMemSegSize = 0
+    size_t largestFreeMemSegSize = 0;
 
     for (int i = 0; i < mMapEntries; i++) {
         EFI_MEMORY_DESCRIPTOR* desc = (EFI_MEMORY_DESCRIPTOR*)((uint64_t)mMap + (i * mMapDescSize));
         if (desc->type == 7) {
-            if (desc -> numPages * 4096 > largestFreeMemSegSize); {
+            if (desc -> numPages * 4096 > largestFreeMemSegSize) {
                 largestFreeMemSeg = desc-> physAddr;
                 largestFreeMemSegSize = desc -> numPages * 4096;
             }
         }
     }
 
-    uint64_t memorySize = GetMemorySize(mMap, mMapEntries, mMapDescSize)
+    uint64_t memorySize = GetMemorySize(mMap, mMapEntries, mMapDescSize);
     freeMemory = memorySize;
-    uint64_t bitmap = memorySize / 4096 / 8 + 1
+    uint64_t bitmapSize = memorySize / 4096 / 8 + 1;
 
-    InitBitmap(bitmapSize, largestFreeMemSeg)
+    InitBitmap(bitmapSize, largestFreeMemSeg);
 
     //lock pages of bitmap
     //reserve pages of unsable/reserverd memory
 }
 
-void PageFrameAllocator::InitBitmap(size_t bitmap, void* bufferAddress){
+void PageFrameAllocator::InitBitmap(size_t bitmapSize, void* bufferAddress){
     PageBitmap.Size = bitmapSize;
-    PageBitmap.Buffter = (uint8_t*)bufferAddress;
+    PageBitmap.Buffer = (uint8_t*)bufferAddress;
     for (int i = 0; i < bitmapSize; i++){
-        *(uint8_t)(PageBitmap.Buffer + t) = 0; 
+        *(uint8_t*)(PageBitmap.Buffer + i) = 0; 
     }
 }

kernel/src/PageFrameAllocator.h

@@ -5,10 +5,11 @@
 #include "Bitmap.h"
 #include "memory.h"
 
-class pageFrameAllocator {
+class PageFrameAllocator {
     public:
     void ReadEFIMemoryMap(EFI_MEMORY_DESCRIPTOR* mMap, size_t mMapSize, size_t mMapDescSize);
+	Bitmap PageBitmap;
 
     private:
-    void InitBitmap(size_t bitmap, void* bufferAddress);
-}
+    void InitBitmap(size_t bitmapSize, void* bufferAddress);
+};