Syntax error when I run install_and_run.sh

When I run install_and_run.sh, the error is :
2019-08-06 18:17:01 [INFO]: Running application
./install_and_run.sh: line 182: syntax error in conditional expression: unexpected token `;'
./install_and_run.sh: line 182: syntax error near `;'
./install_and_run.sh: line 182: `  if [[ $to_install -eq 1]]; then'