Realtek New Master Make Error parameters name queue high on Ubuntu 20.04

I just shifted from Windows to Ubuntu 20.04, But My Wifi Signal is weak. Some times it is working fine then after few seconds it's signal is totally lost and after few seconds signal comes then after few seconds its totally gone it happens continously. When signal lost and i visit any website then it shows Internet not connected. I have came accross a article : https://connectwww.com/how-to-solve-realtek-rtl8723be-weak-wifi-signal-problem-in-ubuntu/4625/

In this article, they said to run the make command. When i go to that directory and run make command then after few minute i got this error and the command is terminated :

alex@alexelsner:~/Desktop/rtlwifi_new-master$ make
make -C /lib/modules/5.11.0-27-generic/build M=/home/alex/Desktop/rtlwifi_new-master modules
make[1]: Entering directory '/usr/src/linux-headers-5.11.0-27-generic'
  CC [M]  /home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.o
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c: In function ‘_rtl92cu_init_chipN_one_out_ep_priority’:
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:622:2: warning: parameter names (without types) in function declaration
  622 |  u16 uninitialized_var(value);
      |  ^~~
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:626:3: error: ‘value’ undeclared (first use in this function)
  626 |   value = QUEUE_HIGH;
      |   ^~~~~
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:626:3: note: each undeclared identifier is reported only once for each function it appears in
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c: In function ‘_rtl92cu_init_chipN_two_out_ep_priority’:
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:648:2: warning: parameter names (without types) in function declaration
  648 |  u16 uninitialized_var(valueHi);
      |  ^~~
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:649:2: warning: parameter names (without types) in function declaration
  649 |  u16 uninitialized_var(valueLow);
      |  ^~~
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:653:3: error: ‘valueHi’ undeclared (first use in this function)
  653 |   valueHi = QUEUE_HIGH;
      |   ^~~~~~~
/home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.c:654:3: error: ‘valueLow’ undeclared (first use in this function)
  654 |   valueLow = QUEUE_LOW;
      |   ^~~~~~~~
make[3]: *** [scripts/Makefile.build:287: /home/alex/Desktop/rtlwifi_new-master/rtl8192cu/hw.o] Error 1
make[2]: *** [scripts/Makefile.build:518: /home/alex/Desktop/rtlwifi_new-master/rtl8192cu] Error 2
make[1]: *** [Makefile:1848: /home/alex/Desktop/rtlwifi_new-master] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.11.0-27-generic'
make: *** [Makefile:76: all] Error 2
alex@alexelsner:~/Desktop/rtlwifi_new-master$

Please someone help me, i am facing too much issues.