don't call functions on nullptr

include/utils/App/App.h

@@ -95,10 +95,9 @@ namespace Archimedes {
                     if(*it == m->getName()) {
                         std::cout << "Module \"" << *it << "\" is already loaded!\n";
                         delete m;
-                        std::cout << "m deleted successfully!\n";
-                        if(h)
+                        if(h) {
                             dlclose(h);
-                        std::cout << "h dlclose successfully!\n";
+                        }
                         return nullptr;
                     }
                 }
@@ -121,7 +120,6 @@ namespace Archimedes {
 
                 bool skip = false;
                 for(auto it : m->deps) {
-                    //std::cout << "Module " << m->getName() << " has dependency " << it.first << std::endl;
                     for(auto s : runOrder) {
                         if(s == it.first) {
                             skip = true;