Unity 2019 webGL build error,Unity 2019 WebGL build error

Hi, I made a project that uses ML-agents and OPENCV for unity and some more plugins. I am having issues to run the WebGL build of the project and I would like to narrow down what could cause the problem. If it is OpenCV, ML-agents, Barracuda or other aspects of my game. I wonder if by looking at the error message you can help identify the cause of the issue.

After run the WebGL build of my project and opened in Firefox I got the following missing function error:

missing function: ZNSt3212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6initEPKcj UnityLoader.js:4:11216 printErr file:///D:/New folder (10)/Build/UnityLoader.js:4 ZNSt3212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6initEPKcj blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 blob:null/4b272731-7820-40b5-9ae9-c321207f743b line 8 > WebAssembly.instantiate:23674939 blob:null/4b272731-7820-40b5-9ae9-c321207f743b line 8 > WebAssembly.instantiate:20195835 GLOBAL_sub_I_darknet_io_cpp blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 func blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 callRuntimeCallbacks blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 ensureInitRuntime blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 doRun blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 run blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 runCaller blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 removeRunDependency blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8 processDataJob file:///D:/New folder (10)/Build/UnityLoader.js:4 callback file:///D:/New folder (10)/Build/UnityLoader.js:3

I also get this error message as a consequence of the previous one:

uncaught exception: abort(-1) at jsStackTrace@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:22472 stackTrace@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:22643 onAbort@file:///D:/New%20folder%20(10)/Build/UnityLoader.js:4:11118 abort@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:820036 __ZNSt3_212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6initEPKcj@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:69857 @blob:null/4b272731-7820-40b5-9ae9-c321207f743b line 8 > WebAssembly.instantiate:wasm-function[79852]:0x169403b @blob:null/4b272731-7820-40b5-9ae9-c321207f743b line 8 > WebAssembly.instantiate:wasm-function[72030]:0x13429fb UnityModule/Module.GLOBAL_sub_I_darknet_io_cpp@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:699806 func@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:49163 callRuntimeCallbacks@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:26251 ensureInitRuntime@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:26767 doRun@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:819362 run@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:819678 runCaller@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:818453 removeRunDependency@blob:null/4b272731-7820-40b5-9ae9-c321207f743b:8:28576 processDataJob@file:///D:/New%20folder%20(10)/Build/UnityLoader.js:4:5421 schedule/i.callback@file:///D:/New%20folder%20(10)/Build/UnityLoader.js:3:19246