diff --git a/docker/Dockerfile-slim b/docker/Dockerfile-slim
index 266de95d..f66b75e0 100644
--- a/docker/Dockerfile-slim
+++ b/docker/Dockerfile-slim
@@ -21,9 +21,8 @@ RUN apt-get update && apt-get upgrade -y \
   && apt-get clean \
   && rm --recursive --force /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-RUN mkdir -p $G4F_DIR && touch /var/log/cron.log
-RUN chown "${G4F_USER_ID}:${G4F_USER_ID}" $G4F_DIR /var/log/cron.log \
- && chmod gu+rw /var/run && chmod gu+s /usr/sbin/cron
+RUN mkdir -p $G4F_DIR
+RUN chown "${G4F_USER_ID}:${G4F_USER_ID}" $G4F_DIR
 
 USER $G4F_USER_ID
 WORKDIR $G4F_DIR
@@ -32,10 +31,12 @@ ENV HOME /home/$G4F_USER
 ENV PATH "${HOME}/.local/bin:${PATH}"
 
 RUN git clone https://github.com/xtekky/gpt4free.git $G4F_DIR \
- && printf "*/15 * * * * python -m etc.tool.update\n" > cronfile && crontab cronfile \
- && pip install --no-cache-dir -r requirements-slim.txt
+ && printf "*/15 * * * * ./docker/start.sh\n" > cronfile \
+ && printf "*/15 * * * * python -m etc.tool.update\n" >> cronfile && crontab cronfile \
+ && pip install --no-cache-dir -r requirements-min.txt
 RUN git clone https://github.com/hlohaus/deepseek4free.git \
  && cd deepseek4free && git checkout 21Feb \
  && pip install --no-cache-dir . && cd .. && rm -rf deepseek4free
 
-CMD cron && tail -f /var/log/cron.log & python -m g4f --port 8080 --debug --reload
\ No newline at end of file
+USER root
+CMD cron && su -c docker/start.sh $G4F_USER
\ No newline at end of file
diff --git a/docker/start.sh b/docker/start.sh
new file mode 100755
index 00000000..810c75b0
--- /dev/null
+++ b/docker/start.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+python -m g4f --port 8080 --debug --reload
\ No newline at end of file
diff --git a/g4f/Provider/PollinationsAI.py b/g4f/Provider/PollinationsAI.py
index ceacf1dc..bc1fe5f9 100644
--- a/g4f/Provider/PollinationsAI.py
+++ b/g4f/Provider/PollinationsAI.py
@@ -531,9 +531,20 @@ class PollinationsAI(AsyncGeneratorProvider, ProviderModelMixin):
                     if reasoning:
                         yield Reasoning(status="")
                     if kwargs.get("action") == "next":
+                        safe_messages = []
+                        for message in messages:
+                            if message.get("role") == "user":
+                                if isinstance(message.get("content"), str):
+                                    safe_messages.append({"role": "user", "content": message.get("content")})
+                                elif isinstance(message.get("content"), list):
+                                    next_value = message.get("content").pop()
+                                    if isinstance(next_value, dict):
+                                        next_value = next_value.get("text")
+                                        if next_value:
+                                            safe_messages.append({"role": "user", "content": next_value})
                         data = {
                             "model": "openai",
-                            "messages": [m for m in messages if m.get("role") == "user"] + FOLLOWUPS_DEVELOPER_MESSAGE,
+                            "messages": safe_messages + FOLLOWUPS_DEVELOPER_MESSAGE,
                             "tool_choice": "required",
                             "tools": FOLLOWUPS_TOOLS
                         }
diff --git a/g4f/providers/base_provider.py b/g4f/providers/base_provider.py
index 7e6b8a0a..15c1d808 100644
--- a/g4f/providers/base_provider.py
+++ b/g4f/providers/base_provider.py
@@ -376,7 +376,7 @@ class ProviderModelMixin:
             model = cls.default_model
         if model in cls.model_aliases:
             model = cls.model_aliases[model]
-        else:
+        if model not in cls.model_aliases.values():
             if model not in cls.get_models(**kwargs) and cls.models:
                 raise ModelNotFoundError(f"Model not found: {model} in: {cls.__name__} Valid models: {cls.models}")
         cls.last_model = model