Problem in Reading Numbers smalller than 10

[Hussin Tsouli]

hello i use reading numbers from an counter that start from 0 to 40 , but i get an issue it only reading numbers from 10 but less 0,1,2,3,4,5,6,7,8,9 it not readed , i use the same images with tess4j in java and it works i dont know how i can solve it ,
image sample :

below the code that i use :
https://i.ibb.co/Qjm50pB/Counter13.png

using (var engine = new TesseractEngine(@"Data/tessdata", "eng", EngineMode.Default))
               {

                   

                     engine.SetVariable("tessedit_char_whitelist", "0123456789");
                   // Process the image using Tesseract
                   using (var page = engine.Process(image))
                   {
                       // Get the extracted text
                       string extractedText = page.GetText().Trim();
}}

i try :
engine.DefaultPageSegMode = PageSegMode.SingleWord; it works for reading but it shows wrong numbers

can someone help me i use this version 5.2.0